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.When the American constitution ______into effect in ,it didn’t contain any words guaranteeing the basic rights of ordinary citizens.
A went                          B. had gone         C. has gone       D. was going
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I _____ to bed when the telephone rang.
A．have beenB．went C．a(chǎn)m going D．was going

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29. —Shall I call you at 6 a.m., Toby?  
—No, not that early. I ____.
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科目：高中英語 來源：不詳 題型：單選題

—We were not sure which way to go. In the end we chose to turn right.
—You _______ the wrong way. You _______ left.
A．had gone; must have turnedB．went; must have turned
C．had gone; should have turnedD．went; should have turned

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34. —Have you thought of a topic for your speech yet?
—No, I__________a lot about it, but I haven’t decided.
A．will thinkB．have been thinkingC．had thoughtD．was thinking

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.When she came out, Mary looked a bit tired because she _____the house.
A．cleanedB．wasC．had cleanedD．had been cleaning

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A．was gatheredB．gatheredC．had gatheredD．has gathered

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．Mother ______ us stories when we were young .
A．was used to tellB．is used to tellingC．used to tellD． used to telling

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Professor Li, who I _________ abroad, still teaches in Peking University.
A．think wentB．think to have goneC．thought wentD．thought had gone

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