Many high school students find schoolwork ____; they have to deal with many kinds of tests and projects, which take up all their time. (U10)

Among all our teachers, Mrs. Lin is the most ____. She is strict with her rules and asks for perfect work from the students. (U9)

This past December, scientists made an unexpected discovery that sent a wave of excitement through scientific circles. It concerns a dinosaur egg fossil ____ an almost perfectly preserved skeleton.

It’s rare to find such a(n) ____ example of a dinosaur embryo. This one provides insight into another connection between modern-day birds and ancient dinosaurs called theropods, from which birds are believed to have evolved.

It’s rare to find such a complete example of a dinosaur embryo. This one provides insight into another connection between modern-day birds and ncient dinosaurs called theropods, _______ birds are believed to have evolved.

The dinosaur egg was first found in China in 2000 by Yingliang Group, but it took over a decade for its secrets to be ____.

The company in China, Yingliang Group, was preparing to open a natural history museum and was ____ the fossils they had in storage

An employee of the company spotted bones showing through a ___ in the egg. Half of the outer layer of the egg was then chipped away to expose the specimen inside. Researchers soon discovered that it was curled up in a manner almost identical to how chicken embryos

An employee of the company spotted bons showing through a crack in the egg. Half of the outer layer of the egg was then chipped away to expose the ______ inside. Researchers soon discovered that it was curled up in a manner almost identical to how chicken embryos

Have you ever wondered why ducklings swim in a row behind their mother? A team of researchers in Scotland recently investigated this question and __(6)__ interesting results. It turns out that the answer is __(7)__. Swimming in this manner helps the ducklings save energy. When a duck swims on its own, the kicking of its feet pushes up waves in its wake, using up energy and creating __(8)__ to its forward motion.

But when a mother duck swims in front with her ducklings in a row behind her, this changes the whole __(9)__. The crest of the mother duck’s wake propels the ducklings forward. The first one in the line gets the biggest __(10)__, and each duckling’s wake helps the one behind it. This __(11)__ wasn’t researched just out of curiosity, however. Researchers believe it may have __(12)__ in marine transportation. They think it could someday help save on fuel costs by shipping goods using a “train” of vessels that move like ducks in a row. (U13)

(A) equation (B) came up with (C) phenomenon (D) resistance (E) applications (F) boost (G) physics

A month after Ben and Louise got married, they had a huge fight. They could not stand being with each other anymore, so they got a ____. (U4)

Mr. Chen loves to put his students in groups for discussion. He finds that all the brainstorming can ____ interesting ideas and thoughts. (U1)

To this day, the Great Pyramid of Giza is a marvel of engineering and architecture. It’s easy to understand why the fascination with this pyramid has persisted throughout history. Of all the original Seven Wonders of the Ancient World, this is the only one still standing. Not only is it massive, currently 138 meters but originally 146 meters tall, but it is remarkably aligned with true North. True North is the direction that goes to the geographic North Pole and it does not move. By contrast, magnetic north moves where the magnetic field goes down vertically into Earth. The four sides of the pyramid’s base are also aligned with the four directions (east, west, north and south). On top of that, the coordinates of the pyramid, 29.9792458 degrees match the speed of light in meters per second.

Based on these facts, some people believe that perhaps this pyramid wasn’t manmade. There are many theories about the true origin of the Great Pyramid of Giza. One such theory was the pyramid was built by people from Atlantis. Atlantis was a “lost city” that was highly technologically advanced. Their pursuit of knowledge angered the gods and thus the city was sunk into the ocean with its inhabitants. However, the story of Atlantis was told by the ancient Greek philosopher Plato and is not part of history.

Another theory is that the Egyptians were instructed in how to build this pyramid by aliens. Legend has it that the Egyptian god Thoth, a man with the head of a bird, was the architect for all pyramids. Perhaps he was a visitor from another planet, and the Great Pyramid was built to serve as some sort of navigational device. (U3)

Q: About the Great Pyramid of Giza, which statement is NOT true?

Artificial sweeteners are used in many foods and drinks as ____ for sugar. Though they are low in calories, they may be harmful to the human body. (U6)

Lisa ____ of a plan to visit Japan after she watched a show on its culture. However, she never got to realize it because of Covid-19. (U6)

People who are applying for this job should go through a ____ process. After all, hundreds of people will fight for only a few openings. (U7)

If you are interested in cooking, there are many simple ____ online that teach you how to make quick and delicious dishes. (U6)

She's not looking to _____blame, knowing that it was an accident.

The role of scientists is to ____ and describe the world, not to try to control it.

Hugh blames his mother ___ his lack of confidence.

If you ____ confront a gaslighter for, say, being too controlling, they might reply, “If you weren’t such an airhead, I wouldn’t have to tell you what to do all the time!”

SInce a gaslighter tends to say “If you weren’t such an airhead, I wouldn’t have to tell you what to do all the time!”, the victims are left _____ they’re the one responsible for the gaslighter’s bad behavior.

“You’re overreacting.”* “I was just joking! If a person repeatedly says these things to you when you __ _them about their bad behavior, then that person may be gaslighting you.

Often, the person being gaslit ends up ___inadequate, insecure, and perhaps even doubtful of their own judgements.

If you call a gaslighter out for saying something hurtful, they might deny having said that thing or ___ you’re just being overly sensitive. Such denial4 and deflection* can make victims second-guess themselves and wonder whether they are indeed misremembering things or making a big deal out of nothing.

If you were to confront a gaslighter for, say, being too controlling, they might reply, “If you weren’t such an airhead, I ____you what to do all the time!”

When gaslighters ___ others, they tend to stick to their lies even when presented with evidence to the contrary.

Since gaslighters tend to lie, keeping a journal is also an effective way of ____your feelings and experiences.

It’s time to end your relationship with the gaslighter. After all, your mental health is____.

Recently, a team of researchers ___ why ducklings swim in a row behind their mother, and they came up with an interesting explanation.

The reason why ducklings swim in a row behind their mother is physics. ___ ,swimming in this manner helps the ducklings save energy. If a duckling swims on its own, the kicking motion of its feet pushes up waves in its wake, using up energy and creating resistance to its forward motion. This is known as wave drag.

If a duckling swims on its own, the kicking motion of its feet pushes up waves in its wake, using up energy and creating resistance ____ its forward motion. This is known as wave drag.

When the ducklings position themselves correctly, the crest* of the mother duck’s wake actually acts as a positive force that propels the little ducklings forward.

The researchers who investigated this phenomenon were not just satisfying their curiosity; they believe the research may have ___ in marine transportation.

Published in an academic journal, the find concerns a dinosaur egg fossil containing an almost perfectly ____ skeleton.

When researchers examined the skeleton, they discovered that it was curled up in a manner nearly identical to chicken embryos just before they hatch. This “tucking”* position, which was previously thought unique to birds, suggests that some avian traits may have first appeared in non-avian dinosaurs.

“It’s remarkable to get a glimpse into the very first stages of life of animals that lived more than 70 million years ago,” said Lindsay Zanno, head of paleontology. The evidence that birds are living theropod dinosaurs is, at this point, ___ . According to scientists, fossilized embryos could play a key role in showing how birds came to develop wings capable of flight.

So if you're thinking about buying one, remember: having a parrot is, possibly, a life-long____!

New data gathered over 15 years on black-browed albatrosses indicatethat rising ocean temperatures have been ____ increases in albatross separation rates.

Warmer ocean waters __ _albatross stress hormones, and heightened stress levels can lead to “divorce.”

The Pyramid of Cestius is on of the best-preserved buildings from the Roman imperial period and serves as an excellent example of the Roman fascination with Egyptian culture and architecture at the time. ____ as a personal tomb by Gaius Cestius, a wealthy Roman official, the 35-meter-tall pyramid displays traces of its Roman heritage in the painted frescoes on the interior walls.

It's a programme designed to ______ mainly to 16 to 25-year-olds.