问题
选择题
—I’m leaving now.
—______ you turn off the lights and the computer.
A.To make sure
B.Make sure
C.Made sure
D.Making sure
答案
答案:B
考查祈使句的用法。句意是:确保你关了灯和电脑。这是一个祈使句,空后面的内容是Make sure的宾语从句;祈使句省略主语you,以动词原形开头。