If he sold the stone, he thought, he ______ enough money for the rest of his life.

If we used more of this source of heat and light, it ＿＿＿＿ all the power needed throughout the world.

If I had known the fact, I _______ action right away.

If you _____ a traffic law, such as drinking and driving, you may not drive for some time.

If it is too cold in this room, you can ______ the air conditioner to make yourself feel comfortable.

_______ the shrinking continues, India will disappear in 200 million years.

The Chinese and Indians______it for at least 4,000 years to treat everything from headache to

depression.

Since the Seoul 1988 Paralympic Games and the Albertville 1992 Winter Paralympic Games, they have also______in the same city as the Olympics.

Since that time humans have________ up and down the earth, digging, climbing, and exploring—searching for something already within themselves.

Since then, World Hello Day—November 21st of every year— _______observed by people in 180 countries.

Since then, the theory has________ and even extended to explain the positive effect of birth order on intelligence.

______since pre-Hispanic times, Lake Catemaco has been a centre for alternative medicine and strange treatments.

Apples have been grown for thousands of years in Asia and Europe, and______to North America by European colonists in the 17^th century.

Without the snow covering the pack,there will not be enough miisture and water to nourish the plants and animals below. Rising temperatures, an effect of global warming,_____threaten the ecosystem of this mountain area.

Those who take pride in being decisive often try their best to consider all the factors beforehand. _____,it is not unusual for them to come up with a decision before they have the time to do so.

There are thousands of reefs the world;_____,however,they are now in serious danger.

When the algae die, the coral loses its color and it also dies _____.

There was once a time when all human beings were gods. However, they often took their divinity for granted and _____ abused it.

The entire island of Kizhi is, _____ , an outdoor museum of wooden architecture created in 1966.

Seeing this, Brahma, the chief god, decided to take their divinity away from them and hide it ______ it could never be found.

All the new students were given one minute to _____ introduce themselves to the whole class.

Eyes are sensitive to light. Looking at the sun _____ could damage our eyes.

The father refused to give them any money. ____ , he asked the kidnappers to pay him $250 to take the boy back.

Badly injured in the car accident, Jason could _____ move his legs and was sent to the hospital right away.

The doors of these department stores slide open _____ when you approach them. You don’t have to open them yourself.

Rapid advancement in motor engineering makes it _____ possible to build a flying car in the near future.

The pineapple, long a symbol of Hawaii, was not a native plant._____, pineapples did not appear there until 1813.

The moment the students felt the earthquake, they ran ______ out of the classroom to an open area outside.

This tour package is very appealing, and that one looks _____ attractive. I don’t know which one to choose.

In most cases, the committee members can reach agreement quickly. _____, however, they differ greatly in opinion and have a hard time making decisions.

It also helps retain the tea’s beneficial chemicals. That is ______ green tea is so good for health.

Research has proven that weather plays a part in our moods: Warmer temperatures and exposure to sunshine increase positive thinking, whereas cold, rainy days bring anxiety and fatigue._____, many people believe that bad weather can reduce productivity and efficiency.

They asked for a ransom of $2,000 to return the boy.______ , their plan quickly got out of control.

John’s clock is not functioning _____. The alarm rings even when it’s not set to go off.

Emma and Joe are looking for a live-in babysitter for their three-year-old twins, ______ one who knows how to cook.

The angry passengers argued ______ with the airline staff because their flight was cancelled without any reason.

Today, apples are _____ eaten the world over and form the basis for multi-million dollar industries.

In Asia, Western names were used until 2000 when the committee decided to use Asian names to ____ Asians’ awareness of typhoons.

For example, the names of Nabi by South Korea, and Longwang by China were _____ with other names in 2007.

When a person takes a polygraph test, four to six wires, called sensors, are _____ to different parts of his body.

It has _____ so many people that a film version was also made. To no one’s surprise, it has enjoyed similar popularity.

The innovative footwear resembles a common sandal and is made of leather straps and rubber soles, a material similar to that used in tires. They come _____ two sizes, and can expand in three places.

Although Maggie has been physically _____ to her wheelchair since the car accident, she does not limit herself to indoor activities.

People in this community tend to _____ with the group they belong to, and often put group interests before personal ones.

The thief went into the apartment building and stole some jewelry. He then _____ himself as a security guard and walked out the front gate.

Due to numerous accidents that occurred while people were playing Pokémon GO, players were advised to be _____ of possible dangers in the environment.

Almost as soon as a child receives shoes to wear, he/she is likely to have grown out of them. Then the child has to _____ with shoes that are too small.

John should ______ more often with his friends and family after work, instead of staying in his room to play computer games.

Much like the dove and robin, the bluebird is considered a very lucky sign in most cultures, particularly when seen in the spring. ______, a woodpecker, when seen near the home, is regarded as a good sign.

In places like India, the peacock is considered lucky because the great many “eyes” on its feathers are said to alert it to ______ evil.

For the soul to travel smoothly, the body had to _____ unharmed.

In society, the former player does not look upon himself as a lone wolf who has the right to remain ______ from the society and go his own way.

We can ________ the spirit going by communicating often and consciously.

If a member country suffers great damage from a certain typhoon, it can ______ that the name of the typhoon be deleted from the list at the annual committee meeting.

Peter stayed up late last night, so he drank a lot of coffee this morning to keep himself _____ in class.

The government is doing its best to ____ the cultures of the tribal people for fear that they may soon die out.

This higher water content also makes ＿＿＿＿ easier for them to bruise.

While adapting to western ways of living, many Asian immigrants in the US still try hard to _____ their own cultures and traditions.

Trade is driven by different production costs in different countries, making _______ cheaper for some countries to import goods rather than make them.

With the help of modern technology, some supermarkets are now able to keep customers _______ about what others are buying.

The restaurant has a _____ charge of NT$250 per person. So the four of us need to pay at least NT$1,000 to eat there.

Before John got on the stage to give the speech, he took a deep ________ to calm himself down.

Kevin had been standing on a ladder trying to reach for a book on the top shelf when he lost his ＿＿＿＿ and fell to the ground.

The memory _____ of the new computer has been increased so that more information can be stored.

Kizhi is an island on Lake Onega in Karelia, Russia, with a beautiful collection of wooden churches and houses. It is one of the most popular tourist ______ in Russia and a United Nations Educational, Scientific, and Cultural Organization (UNESCO) World Heritage Site.

Taking part couldn’t be ______. All one has to do is say hello to 10 people on the day.

When I open a book, I look first at the table of _______ to get a general idea of the book and to see which chapters I might be interested in reading.

Research by the U.S. government now reports that _____ microwave popcorn may contain substances that can cause health .

This substance, according to health scientists, is ______ for some serious lung diseases.

Then pour the popcorn into a bowl and season with a small ______ of real butter or olive oil and natural salt.

Studies show that asking children to do house _____, such as taking out the trash or doing the dishes, helps them grow into responsible adults.

Trade is certainly a main _______ force for globalization.

In line with the worldwide green movement, carmakers have been working hard to make their new models more _____ friendly to reduce pollution.

Maria didn’t want to deliver the bad news to David about his failing the job interview. She herself was quite _____ about it.

In the Bermuda Triangle, a region in the western part of the North Atlantic Ocean, some airplanes and ships were reported to have mysteriously disappeared without a _____.

The airport was closed because of the snowstorm, and our ______ for Paris had to be delayed until the following day.

Brahma thought for a long time and finally decided to hide their divinity in the center of their own being, for humans would never think to ______ it there.

However, this tourist attraction will soon _______. According to the Climate Change Group, formed by environmentalists worldwide to document the effects of global warming, Mount Kilimanjaro’s snows and glaciers are melting.

The _______ of this convention, however, is that a number is hard to remember.

At the very beginning, only ______ names were used because at that time typhoons were named after girlfriends or wives of the experts on the committee.

Three people are running for mayor. All three _____ seem confident that they will be elected, but we won’t know until the outcome of the election is announced.

Everyone in the office must attend the meeting tomorrow. There are no _____ allowed.

Egyptians also built pyramids as ＿＿＿＿ for their kings, or pharaohs. The pyramid housed the pharaoh’s body together with priceless treasure, which would accompany him into the next world.

On March 23, 1999, the musical MAMMA MIA! made its first public appearance in London. It _____ the kind of welcome it has been getting ever since.

MAMMA MIA! has become a _____ entertainment phenomenon. More than 30 million people all over the world have fallen in love with the characters, the story and the music.

Which is more valuable? Water or diamonds? Water is more useful to mankind than diamonds, and yet ______ are costlier.

Being a rare natural resource, diamonds are ______ in supply.

Bottled water is mostly sold in plastic bottles and that’s why it is potentially health _______. Processing the plastic can lead to the release of harmful chemical substances into the water contained in the bottles.

The recent flood completely _____ my parents’ farm. The farmhouse and fruit trees were all gone and nothing was left.

While international trade has long been conducted in history, its economic, social, and political importance has been ______ in recent centuries. During the 1990s, international trade grew by nearly 8.6% each year. In the year 1990 alone, the growth in trade in services was as high as 19%.

The principal of this school is a man of exceptional _____. He sets aside a part of his salary for a scholarship fund for children from needy families.

Sherlock Holmes, a detective in a popular fiction series, has impressed readers with his amazing powers of _____ and his knowledge of trivial facts.

Peter plans to hike in a _____ part of Africa, where he might not meet another human being for days.

After spending most of her salary on rent and food, Amelia _____ had any money left for entertainment and other expenses.

Nowadays many companies adopt a ______ work schedule which allows their employees to decide when to arrive at work—from as early as 6 a.m. to as late as 11 a.m.

To teach children right from wrong, some parents will ______ their children when they behave well and punish them when they misbehave.

The ______ capacity of this elevator is 400 kilograms. For safety reasons, it shouldn’t be overloaded.

An open display of ______ behavior between men and women, such as hugging and kissing, is not allowed in some conservative societies.

When taking medicine, we should read the instructions on the ______ carefully because they provide important information such as how and when to take it.

The feathers of peacocks are considered the most _______ part of the bird because the eye-shaped markings on them are associated with “evil eyes.”

A paperclip, made of steel wire bent into a hooped shape, is an instrument used to hold sheets of paper together. This common _______ is a wonder of simplicity and function.