3 . For two days and nights Buck travelled without food and drink. So now he was searching for a drink d________ to ease his sore throat and tongue. （根据首字母单词拼写）

4 . 单句改错，每个句子中有且只有一个错误
1. People don’t have enough exercise are more likely to have heart attacks.
2. As is known to all, 70% of the air you breathe in every day are nitrogen (氮气).
3. With the help of the teachers, most of the students have made great progresses.
4. Though knew the truth, the witness of the case remained silent for some reason.
5. My grandma used to tell me that a losing opportunity never returns.
6. Can you help Jane out? She can’t make herself understand in class.
7. When it comes to find excuses, she is an expert with whom no one can compare.
8. Xi’an, known as Chang’an then, has become the world’s largest city by the Tang Dynasty.
9. Unfortunate, the car accident claimed two lives and left four injured.
10. Riders are often scared for the first time they get on a horse.

5 . During the pandemic, people may find their phones e________ useful, without which they can’t even travel freely. (adv. to a very high degree) (根据英文提示单词拼写)

7 . 修改以下各题中的错误，每题仅涉及一个单词的添加、删除或修改。
增加：在缺词处下加一个漏字符号（∧），并在句子后面的横线处写出该加的词。
删除：把多余的词在句中用（\）划掉，并在句子后面的横线处写出删除的词并加上删除符号。
修改：在错的词下划一横线，并在句子后面的横线处写出修改后的词。
注意：每处错误及修改仅限一词。
1. I am glad to see you make a rapid progress in your language study.
2. With a good command of English, she has no difficulty talk with her teacher from Australia.
3. Her problems at school began while she started to learn to read and write.
4. In the past 20 years, China made great achievements in environmental protection.
5. Honest, I understood how you felt when your favorite plate dropped on the ground.
6. After a fire broke out in the lab, a lot of equipment were damaged.
7. The boy, abandoned by his parents and short of money, had to work at night to support him.
8. The restaurant isn’t half as better as that restaurant we went to yesterday.
9. House prices go up and people from the area cannot afford buy a house there.
10. He is now concentrating to young kids because he thinks the problem starts at an early age.

8 . Every time a visitor dropped in on her, she would__________display her collection of ornaments.(pride) (所给词的适当形式填空)