问题补充：
--- I won’t have time to go shopping with you this afternoon.
--- But you me yesterday.
A. ordered
B. mentioned
C. promised
D. knew
答案：
A. ordered
B. mentioned
(答案→)C. promised
D. knew
解析：order命令，点菜；mention提及，谈到； promised许诺，允许；knew知道。句意：今天下午我没有时间和你一起去购物。——但是你昨天许诺过了啊！故选C。
