his father had come, his face lit up.A．Having heardB．When he heardC．HearingD．W

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his father had come, his face lit up.

A．Having heard

B．When he heard

C．Hearing

D．When hearing

答案

解析

略

举一反三

His remarks left me about his real purpose.

A．wonder

B．wondering

C．to wonder

D．wondered

题型：不详难度：| 查看答案

She is not worth .

A．to get angry

B．getting angry

C．getting angry with

D．to get angry with

题型：不详难度：| 查看答案

______on ten years of observation and study, Professor Wang announces that everyone dreams every night, whether they realize it or not.

A．Basing

B．Based

C．Been based

D．Having based

题型：不详难度：| 查看答案

_______ out from his company, he had to find a new job.

A．Be kicked

B．Kick

C．Kicked

D．Having kicked

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The experiment shows that proper amounts of exercise, if __ regularly, can improve our health.

A．being carried out

B．carrying out

C．carried out

D．to carry out

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