Coughing _____ also be used for social reasons, such as the coughing before givi

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Coughing _____ also be used for social reasons, such as the coughing before giving a speech．

A．may

B．should

C．must

D．need

答案

解析

略

举一反三

_______ there yesterday, I could have asked him not to do so．

A．If I were

B．If I was

C．Had I been

D．Was I

题型：不详难度：| 查看答案

This cake is very sweet．You __________ a lot of sugar in it．

A．should put

B．could have put

C．might put

D．must have put

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He ___ away before we arrived, since the house was deserted．

A．shall have gone	B．should have gone
C．could have gone	D．must have gone

题型：不详难度：| 查看答案

（原创题）The patient insisted that he _____ ill, and _____back home at once.

A．wasn’t , was sent

B．isn’t , be sent

C．wasn’t , be sent

D．should be , send

题型：不详难度：| 查看答案

This is his only request that the room ______ after being used.

A．is cleaned

B．will be cleaned

C．would be cleaned

D．be cleaned

题型：不详难度：| 查看答案