26.—Whoitbethatisknockingatthe

26. —Who______ it be that is knocking at the door?
—It ______ be Father, but I’m not sure.

A．can; must

B．can; may

C．must; can

D．may; must

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相关试题

So in the darkness that he didn’t dare to move an inch.

A．frightened was he	B．he was frightened
C．was he frightened	D．frightened he was

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I didn’t know his telephone number, otherwise I him.

A．had telephoned	B．would telephone
C．would have telephoned	D．telephoned

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—Is the money your parents give you enough?
—No, I have to have a part-time job to my school expenses.

A．cost

B．pay

C．cover

D．offer

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A computer can’t remember who ; it simply does what .

A．will use it; it is told	B．uses it; it has told
C．used it; it is told	D．has used it; it told

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Emergencies and unexpected situations happen all the time.

A．may

B．can

C．must

D．should

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