—Iknockedbutnobodyansweredthed

—I knocked but nobody answered the door.
----They _____asleep then and didn’t hear you.

A．must be

B．should be

C．must have been

D．should have been

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相关试题

After five hours’ drive, they arrived in _______ they thought was the place _______ they’d been dreaming of.

A．that; which

B．where; that

C．what; that

D．which; where

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--- What do you think of my suggestion?
--- I’m sorry. Er… I _______ about something else.

A．thought

B．am thinking

C．was thinking

D．had thought

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The newly-married couple quarreled so much that they reached the point _______ they had to separate from each other.

A．when

B．where

C．which

D．that

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He was thinking about the problem when an apple fell off the tree, _______ him right on the head.

A．hit

B．having hit

C．hitting

D．and hitting

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I’ve got so many problems _______ today that I’m afraid I won’t have time to have lunch.

A．to handle

B．handle

C．handling

D．handled

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