will your brother tay here tonight?------I'm not sure .he (

will your brother tay here tonight?------I'm not sure .he ( )shopping tonight
a may go
b,will go
为什么是a b不行吗
will your brother stay here tonight?------I'm not sure .he ( )shopping tonight
a may go
b,will go
不可以理解为他对是否stay here tonight不确定 而对今晚go shopping 确定?
逛街回来还是可以住在那的么?