It will be about three weeks____he cones back.A.after B.until C.since D.before

问题描述:

It will be about three weeks____he cones back.A.after B.until C.since D.before

我觉得选B额
选A,C 句子都没有意义 意思都为 “他回来后有3周”
选D “在他回来之前有3周” 这样用才对吧:It will be fun before he comes back
选B 到他回来还有3周。

选b,用排除法,until为直到,意思不通,after与before都是过去或未来的,如果a行则d也行,所以选b.

A

选D

选D.
句意:他会在三星期后回来.