_( )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

_( )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
_( )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

_( )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

a ，两天之内

B
他多久才回来
第一个是多快，第三是多次 第四个是多少