What do customers demand __________to make up for their loss?A．be doneB．to be do

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What do customers demand __________to make up for their loss?

A．be done

B．to be done

C．is doing

D．is to do

答案

解析

略

举一反三

Helen is on time for everything. How ______ it be that she was late for such an important interview?

A．might

B．can

C．must

D．may

题型：不详难度：| 查看答案

Today is Christmas Eve. The department store ______ be very crowded.

A．has to

B．need

C．should

D．had better

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My pain _______ apparent the moment I walked into the room, for the first man I met asked sympathetically， “Are you feeling all right?”

A．must be

B．must have been

C．should have been

D．could have been

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What would have happened ________, as far as the cliff?

A．if Bob has walked farther	B．if Bob should walk farther
C．if Bob had walked farther	D．if Bob walked farther

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Walking in space _________sound easy, yet great care and skills are required.

A．may

B．shall

C．should

D．must

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