问题补充：
Saturday or Sunday. Are you coming?
— . I’ve got rather a busy day this weekend.
A. I hope so
B. Sounds great
C. You’d better not
D. I’m afraid not
答案：
A. I hope so
B. Sounds great
C. You’d better not
(答案→)D. I’m afraid not
解析：考查交际用语。A我希望如此；B听起来很好；C你最好不要这样做；D恐怕不行。句意：—周六或者周日。你会来吗？—恐怕不行。这个周末我很忙。根据句意说明D正确。
