What'sTom gong to do next sunday?I'm not sure,He____go to the country to see his uncle

问题描述:

What'sTom gong to do next sunday?I'm not sure,He____go to the country to see his uncle
A,can,B,must,C,will D,may 为什么呀

I'm not sure被询问人也不确定.所以用may 可能的意思