Don't forget __the window before you leave the room.A,to closeB.closingCclosedDclosewhy?//

问题描述:

Don't forget __the window before you leave the room.A,to closeB.closingCclosedDclose
why?//

A
有两个句型
1.forget to do sth.表示不要忘记去做某事,这个某事没有发生,叫某人要去做这件事
2.forget doing sth.表示不要忘记做过某事,这个某事是已经做过的,叫某人不要忘记做过了