Better _____ all the lights are turned off before you leave the classroom.A.to be sureB.to make sure

题目简介

Better _____ all the lights are turned off before you leave the classroom.A.to be sureB.to make sure

题目详情

Better _____ all the lights are turned off before you leave the classroom.
A.to be sureB.to make sureC.be sureD.make sure
题型:单选题难度:中档来源:不详

答案

D
Better =" Had" better, 后接动词原形。

更多内容推荐