After looking for my keys for half an hour,I found it为什么after后用动名词,found又是过去时啦
人气：312 ℃ 时间：2020-05-19 07:45:38
解答
after是介词,介词后要加名词或动名词
find用过去式,是因为这件事是在过去的某个时间发生的,所以用一般过去式
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