单项选择题

A．Make sure that the windows are shutB．To make sure tha……

______ before you leave the lab.

A．Make sure that the windows are shut
B．To make sure that the windows are shut
C．Making sure to shut the windows
D．To be sure to shut the windows

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热门试题

单项选择题I was impressed______the efficiency of the work done in the company.

A. in

B. about

C. with

D. for

单项选择题The idea came to me when I ______ with him.

A．talk

B．talked
C．was talking

D．have talked

单项选择题—Is Blake still absent from class —I think he______be punished if he goes on with it.

A. will

B. must

C. can

D. shall

单项选择题The reason why the traffic was stopped was the bridge ______ was broken.

A．how

B．that
C．because

D．for

单项选择题—I'm sorry I didn't make it to your party last night. — ______. I know you're busy these days.

A. Of course

B. No kidding
C. That's all right

D. Don't mention it