Question

【题目】It’s 8 o’clock. My mother is reading a book. My sister and I _____.

A. is doing my homework B. am doing my homework

C. is doing our homework D. are doing our homework

Answer 1

【答案】D

【解析】试题分析：句意：八点了。我母亲正在读书。我和姐姐正在做作业。主语my sister and I是复数形式，故谓语用复数。故选D。