I was on the highway when this car went past fol. Lowed by a police car. They __
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I was on the highway when this car went past fol. Lowed by a police car. They ______ at least 150 kilometers an hour. A.should have been doing | B.must have been doing | C.could have done | D.would have done |
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答案
B |
解析
第一句话使用了一般过去时,由此可知第二句话是对过去事情的猜测,需用must have done.本题意为“我正在高速公路上行驶,这时一辆警车跟随着着这辆车从旁边经过。它们一定是以至少每小时150公里的速度行驶。”故选B。A项表示“本应该……”,C项表示“本能够……”不合题意。 |
举一反三
— I’ve taken someone else’s green sweater by mistake. — It ______ Harry’s. He always wears green. A.has to be | B.will be | C.mustn’t be | D.could be |
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— Catherine, I have cleaned the room for you. — Thanks. You ______ it. I could manage it myself. A.needn’t do | B.needn’t have done | C.mustn’t do | D.shouldn’t have done |
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— Lucy doesn’t mind lending you her dictionary. — She _______. I’ve already borrowed one. A.can’t | B.mustn’t | C.needn’t | D.shouldn’t |
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He did not regret saying what he did but felt that he it differently. A.could express | B.would express | C.could have expressed | D.must have expressed |
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This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense.A.would | B.should | C.could | D.might |
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