Question

【题目】________ is his sister and ________ are his parents.

A. This；that B. Those；this

C. This；these D. These；those

Answer 1

【答案】C

【解析】句意：这是他的姐姐，那些是他的父母。根据is可知主语填指代单数名词的代词，排除B和D，根据are可知主语填指代复数名词的代词，排除A，故选C。