―Do you know where David is? I couldn’t find him anywhere.―Well. He ______ have
题型：不详难度：来源：
―Do you know where David is? I couldn’t find him anywhere.
―Well. He ______ have gone far — his coat’s still here.| A．needn’t | B．can’t | C．mustn’t | D．wouldn’t |
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答案
| B |
解析
试题分析：考查表示推测的情态动词用法：句意：--你知道戴维在哪里？我到处都找不到他。---喔，他不可能走远--他大衣还在这儿呢。表示否定推测用can’t have done，过去不可能做了…，needn"t have done sth. 表示“本不必做某事”（实际上做了），mustn"t 表示“禁止”，不能用于推测句。wouldn"t have done sth. 用于虚拟语气，表示“如果。。的话，就不会做了某件事情），选B |
举一反三
----I can’t remember now but_____ sometime last summer?| A．could it be | B．might it be | C．must it have been | D．could it have been |
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----Shall I go and buy two more bottles of beer?
----No, I’ve already bought them yesterday. That be enough for us two.| A．can | B．may | C．should | D．might |
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The manager commanded that the work ____ finished by the end of this month. | A．should be | B．will be | C．must be | D．ought to be |
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Mike ______have stolen the money from the bank,______he appeared to be rich overnight.| A．can’t; for | B．might; for | C．must; since | D．can’t; since |
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—May I watch TV for another 15 minutes, Mum?
—Oh, dear, if you _____. |
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