问题补充：
—We are planning to have a casual get-together this Saturday or Sunday. Are you coming?
— . I’ve got rather a full day this weekend.
A. I hope so
B. Sounds great
C. I’m afraid not
D. You’d better not
答案：
A. I hope so
B. Sounds great
(答案→)C. I’m afraid not
D. You’d better not
解析：考查交际用语。I hope so我希望如此；Sounds great听起来很棒；I’m afraid not 我恐怕不能；You’d better not你最好不要。我们计划这周六或周日举行聚会，你来吗？我恐怕不能，周末我会很忙。选C.
