3. Caroline said she didn’t take the wallet. I believe what she said because I believe         her.

2. —I heard that someone took photos of UFOs in Xinjiang these days.

—I don’t believe a word of        !It’s impossible.

1. —Must I turn off the gas after cooking?

—Of course. You can never be        careful with that.

10. What        (usual experience) it is for the sky divers to jump from a plane of 10,000 feet high.

9. Mr Smith,        (replace) with a new mayor next week,is giving his farewell speech at the meeting.

8. Many buildings in the city need repairing,but the one        (repair) first is the library.

7. The picture exhibition bored me to death. I wish I        (not go) to it.

6. He is the last man        (tell) lies.

5. With more of his mind        (concentrate) on his lessons,the boy, who was once crazy about online games，is making rapid progress.

4. The play        (produce) next month aims mainly to reflect the

local culture.