I was on the highway when his car went past, followed by a police car. They ____

题型：河北省模拟题难度：来源：

I was on the highway when his car went past, followed by a police car. They _____ at least 150km
an hour.[ ]
A. should have been doing
B. would have done
C. could have done
D. must have been doing

答案

举一反三

He thinks he     attend Tom"s party to congratulate him on his success,but he is not sure whether he
will have time this Sunday. [     ]
A. shall
B. might
C. would
D. could

题型：山东省模拟题难度：| 查看答案

Those farmers who _________ move from place to place with their animals in the past have moved into
new houses at last.[ ]
A. could
B. might
C. would
D. should

题型：山西省期中题难度：| 查看答案

— What a pity! You ________ it down on your notebook.
— Oh, my god! I forgot his mobile phone number.[ ]
A. could have written
B. should have written
C. must have written
D. would have written

题型：江苏同步题难度：| 查看答案

— I think I"ll give Bob a ring.
— You ______.You haven"t been in touch with him for ages.[     ]
A. will
B. may
C. have to
D. should

题型：江苏同步题难度：| 查看答案

— May I smoke here?
— If you ______, choose a seat in the smoking section.[     ]
A. should
B. could
C. may
D. must

题型：江苏同步题难度：| 查看答案