用that或who把两个句子连接起来I will buy something next Sunday.My grandpa likes best._________________________________________________________

问题描述:

用that或who把两个句子连接起来
I will buy something next Sunday.My grandpa likes best.
_________________________________________________________

I will buy something that my grandpa likes best next Sunday.

I will buy something that my grandpa likes best next Sunday
个人认为不加that更好

I will buy something that my grandpa likes best next Sunday