Question

【题目】They are doing _______ homework at home.

A. our B. them C. their

Answer 1

【答案】C

【解析】句意：他们正在家里做作业。考查物主代词辨析题do one’s homework做某某的家庭作业；本句主语是they他们，根据句意结构，可知需用they对应的物主代词their，故选C。