在你离开前一定不要忘记关灯 _____ _____ _____ _____ forget to turn off the lights before you leave.

问题描述:

在你离开前一定不要忘记关灯 _____ _____ _____ _____ forget to turn off the lights before you leave.

Before you leave, don't forget to turn off the lights.

Before you leave, don't forget to turn off the lights before you leave

Be sure not to