问题: 请教并请解释三
14. I am sorry ______ written you a letter at the time.
A. to have not B. to not have C. not to have D. not having
16. He could do nothing but _______for the bus _________.
A. wait, to come B. wait; come C. waiting; coming D. waited; came
17 .It is a problem that doesn't need ________ right now.
A. to solve B. solving C. being solved D. to be solving
21. Robert is said to __________ abroad, but I don’t know what country he studied in.
A. to have studied B. to study B. to be studying D. to have been studying
23. when are they __________ in their plan?
A. hand B. handed C. to hand D. give
29. I stopped to listen, and my son seemed _________ himself _________ in the living room.
A. to enjoy, to shut B. to be enjoying, shutting
C. to be enjoying, shut D. to have enjoyed, having shut
解答:
14. I am sorry __C____ written you a letter at the time.
A. to have not B. to not have C. not to have D. not having
be sorry not to do sth:抱歉不做某事，不定式表原因.
16. He could do nothing but __A_____for the bus _________.
A. wait, to come B. wait; come C. waiting; coming D. waited; came
wait for ... to do sth.but是连词，后面的动词和do时态一致，所以用原形.
17 .It is a problem that doesn't need ____B____ right now.
A. to solve B. solving C. being solved D. to be solving
sth need doing,某物/事需要…
21. Robert is said to _____A_____ abroad, but I don’t know what country he studied in.
A. to have studied B. to study B. to be studying D. to have been studying
过去式，Robert已经不在国外学习了，完成时态。
23. When are they ____C______ in their plan?
A. hand B. handed C. to hand D. give
to hand作表语.
29. I stopped to listen, and my son seemed _____C____ himself _________ in the living room.
A. to enjoy, to shut B. to be enjoying, shutting
C. to be enjoying, shut D. to have enjoyed, having shut
seem to do后接enjoy的现在进行时.
版权及免责声明
1、欢迎转载本网原创文章，转载敬请注明出处：侨谊留学（www.goesnet.org）；
2、本网转载媒体稿件旨在传播更多有益信息，并不代表同意该观点，本网不承担稿件侵权行为的连带责任；
3、在本网博客/论坛发表言论者，文责自负。
