时间状语,求分类!yesterday,just,every day,soon,in 1997,already,somet
时间状语,求分类!
yesterday,just,every day,soon,in 1997,already,sometimes,in two days,often ,just now,tomorrow,since 1997,last week,on Thursday,usually,never,for two days,from now on,two days ago,next Thursday
do/does:……
be going to do:……
did:……
have/has done:……