Now we can fly to Tokyo. There was a time ________ we had to take a boat.A．howB．

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Now we can fly to Tokyo. There was a time ________ we had to take a boat.

A．how

B．what

C．why

D．when

答案

解析

略

举一反三

He is a man of great knowledge, ___much can be learned.

A．in whom

B．about whom

C．from whom

D．of whom

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Air, _ __we breathe every day, is around us all the time.

A．that

B．/

C．which

D．it

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We often think of the days ___we spent together on the island.

A．when

B．which

C．in which

D．during which

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Can you solve such problems ___raised by the audience?

A．what were

B．as were

C．that were

D．which were

题型：不详难度：| 查看答案

The buses, ____were already full, were surrounded by an angry crowd.

A．most of them

B．most of which

C．which most

D．that most

题型：不详难度：| 查看答案