See to it that all the light (are) turned off before you leave.为什么写are?为什么 should be不行.
问题描述:
See to it that all the light (are) turned off before you leave.为什么写are?为什么 should be不行.
答
See to it that all the light (are) turned off before you leaveSee to it留意必定做…that 定从it=all the light (are) turned off before you leave all the light 所有的灯 turn off 关闭before you leave在你...