It"s hard to say what kind of person he is.Sometimes he is very friendly；at othe

题型：山东省同步题难度：来源：

It"s hard to say what kind of person he is.Sometimes he is very friendly；at other times he________be
very cold.[     ]
A．can
B．must
C．will
D．shall

答案

举一反三

________it have been the failure to pick up directions from the ground control that caused the air crash?[     ]
A．Must
B．Could
C．Would
D．Should

题型：山东省同步题难度：| 查看答案

—No one was prepared for the teacher"s questions.
—We________read the lesson yesterday evening.[     ]
A. must have
B. could have
C. should have
D. might have

题型：山东省同步题难度：| 查看答案

The little child ______ go out alone at night，so he ______ walk in the dark that night.[ ]
A. daren"t；didn"t dare to
B. doesn"t dare；dare not to
C. isn"t dare to；dared not to
D. doesn"t dare to；dare not to

题型：江苏同步题难度：| 查看答案

I told your friend how to get to the hotel, but perhaps I________have driven her there.[     ]
A. could
B. must
C. might
D. should

题型：同步题难度：| 查看答案

John promised his doctor he________not smoke, and he has never smoked ever since. [     ]
A. might
B. should
C. could
D. would

题型：福建省同步题难度：| 查看答案