It was playing computer games that cost the boy plenty of time that he have spent doing his lessonsA．mightB．mustC．couldD．ought to 题目和参考答案——青夏教育精英家教网—

题目内容

It was playing computer games that cost the boy plenty of time that he _____have spent doing his lessons

A．might

B．must

C．could

D．ought to

略

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— May I tell this to my close friend?
— No, you___________. Never let anybody else know about it.

---Where is my reference book? It was here a moment ago.
---Someone ______ it by mistake.

A．should have taken	B．must take
C．might take	D．must have taken

— I went to work on foot yesterday, though it _______ cats and dogs.
— You _______ by bus. It was easy for you to get a cold.

A．is raining; must have gone	B．rained; would go
C．have rained; could have gone	D．was raining; should have gone

—I expected him to be nervous before his speech, but he was as cool as a cucumber.
—He _______ it carefully.

A．could have prepared	B．shouldn’t have prepared
C．must have prepared	D．can’t have prepared

You should pay a lot of attention to children’s ideas; sometimes they ___be really creative.

---Could I borrow your dictionary?
----Yes, of course, you .

The front door ________ open．I'll have it repaired．

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