he with his mother () shoppingA an B is C are D be

问题描述:

he with his mother () shopping
A an B is C are D be

选B,正常的语序是:He is shopping with his mother.

选C.
解释:
句子大意:他和他的妈妈正在购物。with表示并列,所以用复数are.

B
He is shopping with his mother