将来完成,进行,完成进行时态
将来完成,进行,完成进行时态现在完成时习题1. His brother has been to Stone Forest twice______he came to Yunnan.A. afterB. beforeC. sinceD. for析:主句用的是现在完成时,而从句用的是一般过去时,故选C。 2. Tom______the CD player for two weeks.胎记怎么去掉A....
2023-10-16 19 0
将来完成,进行,完成进行时态现在完成时习题1. His brother has been to Stone Forest twice______he came to Yunnan.A. afterB. beforeC. sinceD. for析:主句用的是现在完成时,而从句用的是一般过去时,故选C。 2. Tom______the CD player for two weeks.胎记怎么去掉A....