问题补充：
---Will you go with us for an outing on Saturday?
--- I’d like to, but I am really busy these days. I can’t a whole weekend.
A. afford
B. offer
C. share
D. spend
答案：
(答案→)A. afford
B. offer
C. share
D. spend
解析：A. afford支付的起，腾出时间 B. offer提供 C. share分享 D. spend花费；句意：你星期六会和我们去远足吗？我很乐意，但是这些日子我很忙，我不能腾出一个周末出来，故选A
