—Where ____ Margaret have put the empty bottles?—She ______ them away. They mus

 —Where ____ Margaret have put the empty bottles?—She ______ them away. They mus

题型:不详难度:来源:
 —Where ____ Margaret have put the empty bottles?
—She ______ them away. They must be somewhere.
A.can; can’t have thrownB.must; needn’t
C.must; must have thrownD.can; must throw

答案
A
解析
本题考查情态动词+have done表示对过去事实的推测的用法。must have done用于肯定句中,疑问句否定句中应用can could代替must。故选A。
举一反三
—We need a person badly to think up such an idea .
—_____ the new comer have a try ?
A.Shall B.MayC.Should D.Need

题型:不详难度:| 查看答案
I’d rather you did some housework when you are free ,but you______ .
A.didn’tB.shouldn’tC.weren’t D.don’t

题型:不详难度:| 查看答案
 The door______. Better have it repaired .
A.isn’t shut B.hasn’t been shut
C.won’t be shut D.won’t shut

题型:不详难度:| 查看答案
 —What’s the matter with you ?                   
—Oh, I’m not feeling well in the stomach . I ______so much fried fish just now .
A.shouldn’t eat B.mustn’t have eaten
C.shouldn’t have eaten D.mustn’t eat

题型:不详难度:| 查看答案
 It is hard for me to imagine what I would be doing today if I_____ in love , at the age of seven , with the library in my hometown .
A.wouldn’t have fallen B.should not fall
C.had not fallen D.were not to fall

题型:不详难度:| 查看答案
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