问题补充：
---What did you discuss just now?
---We discussed .
A. when could we meet at Xinhua Bookstore
B. where we would have a wonderful outing
C. whether we will have a barbecue during May Day
D. who is suitable to be the host of the charity
答案：
A. when could we meet at Xinhua Bookstore
(答案→)B. where we would have a wonderful outing
C. whether we will have a barbecue during May Day
D. who is suitable to be the host of the charity
解析：考查从句，可以用排除法，A应该用陈述语气；C时态不对，由前面的动词discussed可以知道是一般过去时，所以用could；D时态不对，由前面的动词discussed可以知道是一般过去时，改用was，所以选B
