问题描述：
usually visit my grandpa on Sunday,but ____ we do that on Saturday.
We usually visit my grandpa on Sunday,but ____ we do that on Saturday.
A.sometimes B.seldom C.never D.always
We usually visit my grandpa on Sunday,but ____ we do that on Saturday.
A.sometimes B.seldom C.never D.always
问题解答：
我来补答展开全文阅读