34．A．before B．after C．until D．while 【查看更多】

 

題目列表(包括答案和解析)

It is impolite to leave             the meeting finishes.

A．after

B．before

C．until

D．while

 

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It is impolite to leave             the meeting finishes.

A．after               B．before                 C．until                D．while

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________ we were singing happily, he came in．

[　　]

A．While

B．After

C．Until

D．Before

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I met your brother ______ I was walking in the street.

A．before

B．until

C．after

D．while

 

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______ Kathy was watching TV, her mother asked her to go shopping.

A．Before           B．Until             C．While            D．After

 

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