题目内容：

She was playing the piano while I was reading the newspaper.
可以变成She played the piano while I readed the newspaper.
什么情况过去进行时可以变成过去时`

优质解答

可以1.She hesitated for a minute and stood still while a tear or two fell on the worn red carpet.她迟疑了一会儿,呆呆地站在那儿,同时一两滴泪水溅落在那破旧的红地毯上了.2.“Della,”said he,“Let's put ou...