. –What’s the noise ? It sounds as if it es 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
网友回答
A. I’m not sure
B. I hope not
C. I’d rather not
(答案→)D. I don’t think so
解析：可联系答.案.网客服索取。