---Could you tell us ?
---In two days.
A. how long will he e back
B. how long he will e back
C. how soon will he e back
D. how soon he will e back
网友回答
A. how long will he e back
B. how long he will e back
C. how soon will he e back
(答案→)D. how soon he will e back
解析：
试题分析:根据答语in two days可知询问的是多久以后，故用how soon来提问，又因宾语从句要用陈述句语序，故选D。