_( )will he be back? _In two days A How soon B How long C How often D How many

问题描述:

_( )will he be back? _In two days A How soon B How long C How often D How many
说明你选择的理由并解释In two days中In的意思

选A
How soon 提问,用in+时间来回答,并用将来时