since 引导时间状语从句中一般用一般过去时,前面主句一般用现在完成时.
since后接一般过去式 前边接什么?We two have been out of conta
1个回答
相关问题
-
ever since后什么时候接一般过去时什么时候接过去完成时
-
过去式后接什么时态
-
have been后能接什么？能接动词ing形式吗，为什么？
-
have been 后接形容词 和 have been doing 的区别
-
We first met two years ago,and have been good friends since
-
have been in与have been to后面分别接什么?
-
since then后接什么时态
-
have 后接 done,have not 接什么形式
-
He has been out for two hours.(同义句) Two hours_____ _____sinc
-
It's been +一段时间 + since +一般过去式