试题与答案

Whoever leaves the lab last, _____ all t

题型:选择题

题目:

Whoever leaves the lab last, _____ all the lights are turned off.

A.make sure

B.make sure of

C.be sure

D.be sure of

答案:

答案:A

本题的含义是无论谁最后离开实验室,都要务必把所有的等关上,make sure表示务必或确保的意思,后跟从句,故本题选A。

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