题干
（陕西卷1）3. –What’s the noise? It sounds as if it comes from upstairs.
--______ .It must be the window-cleaner working, next door.
A：I’m not sure
B：I hope not
C：I’d rather not
D：I don’t think so
答案(点此获取答案解析）
D
里画“√”）再算一算，如果够坐，还空多少个座位？如果不够，还差多少个座位？