Before you leave the classroom, _____all the lights.
Before you leave the classroom, _____all the lights.
A、turn up
B、turn over
C、turn to
D、turn off
【正确答案】:D
【题目解析】:本题考查动词短语辨析。句意:你离开教室的时候,请把所有的灯都关了。turn up偶然出现,到来;turn over翻身,翻转;turn to转向,求助于;turn off关上,关掉。根据句意,本题选D。
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