may have acted
must have acted
should not act
would not act
第1题：
(A) would see
(B) should see
(C) must have seen
(D) would have seen
正确答案：D
解答参考：D.otherwise一词隐含了一个虚拟条件句，由于he said所用的是一般过去时，所以应该用表示与过去事实相反的虚拟形式：would have done。A)和B)的情态动词后直接跟动词原形，是对现在情况的虚拟，不合题意;must表示对过去事情比较肯定的推测，而不表示与事实相反的结果，本句中事实情况是他没有看到她。【译文】他说她肯定离开小镇好几周了，否则他该在办公室里见到她。
第2题：
A. should do
B. should be doing
C. should have done
D. should have
第3题：
A、must have got though
B、would get though
C、would have got through
D、could get through
第4题：
24． What would happen to a student who often goes to bed late and gets up early?
A． He would fall asleep in class．
B． He would do well in study．
C． He would finish his homework fast．
D． He would have good health．
第5题：
He did not regret saying what he did but felt that he it differently.
A． could express
B． would express
C． could have expressed
D． must have expressed
第6题：
A.would have been
B.must be
C.would be
D.must have been
第7题：
If he my advice, he wouldn't have lost his job.
A. followed
B. should follow
C. had followed
D. would follow
第8题：
A.should like you to see
B.would have liked you to be seen
C.should like you to have seen
D.would like you to see
第9题：
Bob was fully occupied yesterday, otherwise he _______ to the meeting.
A. would come
B. had come
C. must have come
D. would have come
第10题：
A.should have helped
B.would help
C.would have helped
D.helped