A middle-aged man has been identified 　　　 the attacker in the shooting incident last night.

Due to its tropical climate, the rainforest is home 　　　 a huge number of plants and animals.

While some people have a preference for a particular vaccine, 　　　 will accept anything available.

Some of our customers have agreed to accept this offer while 　　　 are still considering it.　

Favio Chávez decided to make a difference in Cateura while he was working on a waste recycling project at the local landfill. In this area, more than 40% of children don’t finish school because they are 　(1)　 to work.

　(2)　 an environmental engineer with a musical background, Chávez decided to help the children by giving them music lessons.

He thought he could bring change to their lives. Therefore, he set up a(n) 　(3)　 for the children.

According to Chávez, it was very difficult at first because they had no place to rehearse and he had to teach in the place 　(4)　 their parents were working among the trash.

In addition, the children knew nothing about music. However, little 　(5)　 little, they overcame all these problems and their story spread across the world.

Mayor Watson has a plan. He wants to improve his dirty, boring old town, 　(1)　 it needs some big changes to make it a better place to live in.

He is 　(2)　 professional help, so he plans to set up an organization with experts from various fields.

　(3)　 dealing with environmental issues, they will arrange major cultural events such as art performances and exhibitions.

　(4)　, Mayor Watson believes, the town will turn into an amazing place in the near future.

It will be a(n) 　(5)　 everyone can be proud of their town. The mayor is determined that his plan will succeed.

Please keep these 　　　 in a place the children can’t reach, in case they get hurt.

Calum’s father is an expert 　　　 who is good at fixing broken components（零件）in electronic devices.

The 　　　 Seth and Victor talked about was interesting but not relevant to our project.

The organ（管風琴）is a large musical 　　　, and it is commonly found in cathedrals（大教堂）.

After the massive nuclear explosion（核爆）, the people living in the region had to live in a(n) 　　　 and polluted environment for decades.

The reason why Gareth could fulfill his dream 　　　 his undying passion and hard work.

　　　 by 　　　, the snacks sold at our store become more and more popular because of the recommendation of regular customers.

Much to our surprise, Celine volunteered to 　　　 the challenging task of organizing the advertising campaign, even though she is a new employee.　

When the boy was willing to 　　　 me, I was able to help him with his problems.

The organizer promised to 　　　 extra staff to make sure the event went well.

To overcome his 　　　 after the death of his wife, Hans joined an online chat group.

These old ruins are all that remains of an ancient 　　　.

The Redskins opened the season by scoring an impressive 25-3 　　　 over Detroit.

The test proved that the winning 　　　 didn’t take drugs, despite the rumors.

Taipei basin（盆地） is 　　　 by mountains, and some of them are extinct volcanoes（死火山）.

It’s an incredible challenge for the team to research and develop a new technology, but everyone is working hard 　　　.

Brett felt depressed because he swam so badly that he was ten meters 　　　 the pace in the race.

Mr. Eliot 　　　 for not taking his health problems seriously. He was rushed to hospital today.

If you sprain（扭傷）, a 　　　 doctor can treat it.

Samantha put some sugar into her tea 　　　 it would taste sweeter.

The city lay hidden for centuries, 　　　 by a volcanic eruption.

Running very long distances can be satisfying and a lot of fun, especially if you are training and racing on trails. But with all of the situations that come up with ultra-distance runs, such as tiredness, fueling, hydration（補水）, weather and minor aches and injuries, there will be times that ultrarunning will feel more 　(1)　 than fun.

As long as you insist 　(2)　 continuing and embrace the journey, your enjoyment will increase as your aerobicfitness（有氧運動）grows.

Also, your body is hardened by the effort you put into these 　(3)　.

Take the long view and add to the distance gradually at a slow pace, and make sure 　(4)　 you’re prepared with the right shoes, clothes, and accessories.

You also need all the elements for fueling and hydrating 　(5)　 your physical fitness will last. When you push through the occasional discomfort, you will find on the other side that running a long way is no longer as difficult.

Jax Mariash is known as “The Queen of the Desert,” because she was the first woman to complete the 　(1)　 of the 4-Deserts Race Series Grand Slam Plus, and was the 2016 4-Deserts female world champion.

Few years ago, she became the female champion at the 2018 Grand-to-Grand Ultra, a seven-day, 170-mile 　(2)　race through the Utah and Arizona deserts.

It starts at the Grand Canyon’s North Rim and ends at the summit of the iconic Grand Staircase, and the distance is 　(3)　 long 　(3)　 it takes great determination and endurance to finish the race.

If runners weren’t 　(4)　, they couldn’t make it.

　(5)　 the odds, Mariash won the Last Desert race in cold, snowy and icy Antarctica in 2016, the final race in the 4-Deserts series.

The route, which varies 　(6)　 9 and 39 miles per day, crosses frozen lakes and climbs mountains.

Runners can expect to see displays of the northern lights 　(7)　 by night.

With only seven hours of daylight in the polar 　(8)　, the majority of the running was done in the dark.

“Typically, I put my head down and listen to music and check out,” Mariash says. “I don’t always remember to look around, 　(9)　 the scenery.

But I am very excited about the chances to see the northern lights. If that happens, I will stop, pull my phone out 　(10)　 I can film the scene. That would be magic.”

The product 　　　 and the manufacturer made a fortune.

Roy loves this hat so much because it 　　　 his outfit, but his mom considers it weird.

Mr. Daniels often 　　　 funny stories and tells them to his children at bedtime.

Vera’s innovative 　　　 applications help companies overcome difficulties in production.

Tesla, a(n) 　　　 maker which specializes in electric cars, plans to start converting its electric cars into fully self-driving vehicles soon.

Flowers and fruits are essential 　　　 for plant reproduction（繁殖）.

The 3D-printing revolution is changing people’s lives in many ways. Believe it 　(1)　, that includes the food we eat.

Some of the world’s 　(2)　 restaurants have started to use 3D-printed ingredients in the meals they serve.

In Spain, one famous chef says that 3D printing has increased his 　(3)　 because of the new resources available to him.

He uses them to 　(4)　 dishes 　(4)　 that would be impossible any other way.

And according to recent reports, even fast-food chains like McDonald’s are 　(5)　 to have 3D-printed food products on their menus. Maybe you’ll soon be able to enjoy a 3D-printed Big Mac.

This 　　　 story about a boy who helped homeless people made me cry.

rushed to the hospital and visited Ariel as soon as I heard that she’ d been involved in a car crash, but fortunately her condition was 　　　 less serious than I imagined.

Bioprinting is an application of 3D printing. It uses “bioink,” a combination of cell and growth factors to create tissue-like structures, making medical treatments 　(1)　 safer and faster than before.

In fact, it has been improving treatments and saving lives in the field of medicine for 　(2)　.

In the past, patients undergoing 　(3)　 transplantation had a high risk of vital organ failure.

However, with this technology, doctors can now print replacement organs from a patient’s own 　(4)　 without causing an immune response.

Also, patients in need of a new organ no longer have to wait for a(n) 　(5)　.

Without a doubt, patients with organ-related issues can 　(6)　 a lot from this technology.

In addition to 　(7)　, bioprinting is useful in research. With 3D printed tissues, scientists can identify the side effects of drugs and know the safe dosages（劑量）.

This is an ethical and 　(8)　 option for drug testing. With these and other applications of bioprinting, it’s pretty clear that the field will continue to grow in importance.