He ____(forget) to turn off the light when he left the room

问题描述:

He ____(forget) to turn off the light when he left the room

forget即可接to do,表示忘记去做某事,有可接doing,表示忘记曾经做某事,此句为一般过去时,用forgot.

填写:forgot
这里根据when he left the room,判断是一般过去式,所以用forgot