一般过去式,是表示过去时间发生的事情,
现在完成时,是表示到现在为止已经完成的事情
最主要看时间词
例如：He finished his homework last week.
He have finished his homework for a week.
一般过去式,是表示过去时间发生的事情,
现在完成时,是表示到现在为止已经完成的事情
最主要看时间词
例如：He finished his homework last week.
He have finished his homework for a week.