Tell the boy to ______ all lights as he

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问题选择题

Tell the boy to ______ all lights as he leaves the room.

A．take off

B．switch on

C．switch off

D．turn on

答案

答案：C

短语辨析。A. 起飞；脱下 B.接通；开启 C. 关掉；切断 D. 打开；发动。句意：告诉这个男孩当他离开房间时关掉所有的灯。故选C。

选择题

“XiJinping's report, ” a smile on his face, he continued, “_____ to several hot topics, discusses how to increase peasants' income.”

A．referring

B．refers

C．having referred

D．referred

填空题

多缸发动机气缸排列型式通常有：（）式、（）式和（）式。