用动词适当形式填空：

1. The text needs___________ (explain) once again.

填 explaining/to be explained. need后面接动名词作宾语主动表被动。

2. The movie is worth ___________ (see).

填seeing. be worth doing.表示值得做什么

3. I've had a hard time ________ (learn) English.

填 learning. have a hard time (in) doing sth.

4. I still remember __________ (take) you to Beijing for the first time.

填 taking. remember doing sth.表示记得做过某事。

5. Clint always remember __________ (turn) off the lights when he leaves the room.

填to return. remember to do记得去做某事

6. Now he regrets ________ ( not, go) to university.

填not going. regret doing sth. 对做过的事情后悔

7. We regret ________ (inform) you that the flight has been cancelled.

填 to inform. regret to do sth. 对要做的事遗憾

8. I regret _________ (let) slip that opportunity.

填letting. regret doing sth. 对做过的事情后悔

9. Peter went on ___________ (sleep) despite the noise.

填sleeping. go on doing继续原先没有做完的事情

10. He welcomed the new students and then went on __________ (explain) the college regulation.

填 to explain. go on to do sth. 继而做另外一件事

11. Mr.Smith regretted _____ (blame) his secretary for the mistake, for he later discovered it was his own fault.

填 blaming. regret doing sth. 对做过的事情后悔

12. The boy is constantly being told not to scratch the paint off the wall, but he goes on ________ (do ) it all the time.

填doing. 继续原先没有做完的事情

13. You must tell me the truth. I insist on _______ (tell) the truth.

填telling. 介词on后面用动名词