I don't know____he will be back.A.how long B.hao soonc.hao farD.hao much

I don't know____he will be back.A.how long B.hao soonc.hao farD.hao much
I don't know____he will be back.
A.how long
B.hao soon
c.hao far
D.hao much

I don't know____he will be back.A.how long B.hao soonc.hao farD.hao much
选B,A表示时间持续的长度,而B表示距离动作发生还有多长时间

A
多久才能回来的意思

how soon

A

B
How soon是用来问未来的时间的

选B
首先排除D....那时问价钱的
C试问距离的