问题补充：
--- How about going for a picnic this coming Sunday?
--- , but I have to see my grandma with my parents.
A. All right
B. Sounds great
C. No problem
D. No, I’m sorry
答案：
A. All right
(答案→)B. Sounds great
C. No problem
D. No, I’m sorry
解析：句意：--这个星期天去野餐怎样？--听起来不错，但是我不得不和我的父母一块看我的祖母。All right好吧；Sounds great听起来不错；No problem没问题；No, I’m sorry不，对不起。根据句意故选B。
