试题 试卷
题型：单选题 题类：模拟题 难易度：普通
— Sorry, I __________. I __________ take care of my little sister because my mother is out.
—I'm sorry, it _____ be her. I saw her staying at school half an hour ago.
— No. You must set the table first.
— No, you .
试题篮
