- 问题详情: yousmileatothers,theywillsmileback. A.Before B.When C.Until D.Though【回答】B知识点:连词题型:选择题...
- 9104
- 问题详情:_______Igottothebusstop,thebushadalreadyleft. A.Before B.After C.Assoonas D.Since【回答】A解析:汽车离开hadleft发生在我到达gotto之前,所有用before。知识点:连词题型:选择题...
- 20776