He bought another new car. He _____ a lot of money.A.must earnB.must have earned

He bought another new car. He _____ a lot of money.A.must earnB.must have earned

题型:不详难度:来源:
He bought another new car. He _____ a lot of money.
A.must earnB.must have earnedC.can earnD.could have earned

答案
B
解析

试题分析:考查情态动词表示推测。对现在的情况进行推测,使用“情态动词+动词原形”;对过去的情况进行推测,使用“情态动词+have done”;根据本题的bought说明是对过去的情况进行推测,排除AC项。D项could have done本可以做某事,实际上却未做,该短语表示的是虚拟语气。Must have done一定做了某事;是对过去所发生事情的肯定推测。句意:他买了一辆新车,他一定挣了很多钱。故B正确。
点评:情态动词用法中对现在的情况进行推测,使用“情态动词+动词原形”;对过去的情况进行推测,使用“情态动词+have done”;同时要注意情态动词表示推测与虚拟的区别。
举一反三
— Do you know where Miss Gao is? I couldn’t find her anywhere.
— She ________ have gone far, for her coat is still here.
A.shouldn’t B.mustn’tC.can’t D.wouldn’t

题型:不详难度:| 查看答案
—We want someone to design the new art museum for us?
          the young fellow have a try?
A.MayB.ShallC.WillD.Need

题型:不详难度:| 查看答案
You       trust an online shop just because it has a beautifully-designed website.
A.shouldn’tB.mustn’t C.couldn’tD.needn’t

题型:不详难度:| 查看答案
–What do you think we can do for our parents?
--You ____ do anything except to show your love -- a kind word, a warm smile and a helping hand.
A.can’t B.oughtn’t toC.don’t have to D.mustn’t

题型:不详难度:| 查看答案
The weather turned out to be fine yesterday. I ________the trouble to carry my umbrella with me. 
A.should have takenB.could have takenC.mustn"t have takenD.needn"t have taken

题型:不详难度:| 查看答案
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