1 . Our scientists are making an effort to t_________ the deserts into grasslands. (转变) (根据中英文提示填空)

2 . He won’t be able to _________(参加) in the cycling competition due to his injured leg.(根据汉语提示单词拼写)

3 . The first crucial step for rescue teams after an air crash is to l________ where the plane has fallen. (根据首字母单词拼写)

4 . Due to the heavy rain and flooding, ten million people have been forced________ (leave) their homes. （用所给词的适当形式填空）

5 . You’ll need to c________(计算) how much time the assignment will take. (根据中英文提示拼写单词)

6 . Let me give another example to i_________(说明) this difficult point. (根据中英文提示单词拼写)

7 . Do remember to________ the red button in case an accident breaks out. (根据句意填空)

8 . Being a Chinese, is it wrong to have a desire ________ (learn) a foreign language? (所给词的适当形式填空)

9 . I have arranged for my assistant _______(take) my place to attend the meeting. (所给词的适当形式填空)

10 . If you use a chart, you can make the information easier to ________ (理解). (根据汉语提示单词拼写)