Question

1. It is half past eight now. He hasn’t turned on. But he promised to come at eight yesterday.

2. They were all puzzling over the fact that he hadn’t come yet.

3. On arriving home, he put up the CD he liked best and went into the bathroom.

4. We surf the Internet twice a week for average.

5. The sports meeting was put off due to that it was raining hard.

6. During my short stay in France, I picked some French.

7. There is no possibility in his changing his mind.

8. Galileo’s theory always based on a lot of experiments.

9. His dream of becoming a university student was finally come true.

10. Are you on charge of the experiment?

 

Answer 1

答案：
提示：

1. on→up  turn up 出现。 2. puzzling→puzzled 人做主语，用ed形式。 3. up→on   put on  把...放在上. 4. for→on  on average 平均。 5. 在that前加上the fact  that前缺少先行词。 6. 在picked后加上up  pick up a language 7. in→of  there is no possibility of sth. 固定句型，表示不可能。 8. 在based前加上was  be based on 结构。 9. was→has   come true 主语为物，无被动。 10. on→in    in charge of 负责，掌管。