yet是什么时态的否定?
yet是什么时态的时间状语标志?
have you packed yet?是什么时态
he hasn't come yet是什么时态?
1.He is still combing his hair.(用yet改为现在完成时态的否定句) 具体看下面
He has not had breakfast yet.是什么时态?
Has he returned the library book yet?是什么时态?
一般将来时态肯定句.否定句.疑问句的基本结构是什么 否定句
yet用于什么时态
not yet的英文是什么
yet用于否定,在现在完成时里的意思
already,yet 用于什么时态
I've already had lunch.Have you had lunch yet?这是什么时态呢?