It’s 8 o’clock. My mother is reading a b

问题选择题

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

答案

答案：D

题目分析：句意：现在八点了，我妈妈正在读书，我和妹妹在做作业。my sisterand I 是两个人，be 动词用are,do one’s homework中的one’s根据主语进行变化，故选D。