pay attention to doingto是介词、要注意!pretend to do还有一个考试点是 pretend to be doing假装正在做某事give up doingwaste +时间或金钱 doing instead of doing stay up doing attempt ...确实有帮助，不过真的是挺少的。。如果还有想起来的，再补充一下哈，谢谢。。嗯，好 。finish doingforget to do /doing没做过用to do ,做过了却忘记的 用 doing remember to do / doing 用法类似于 forget expect sb. to do 期待某人做某事。