题干
—Susan, why are you still here? They are all ready to start.
—I'm sorry, but I _______ when to meet.
A：don't tell
B：didn't tell
C：haven't told
D：wasn't told
答案(点此获取答案解析）
D
，下午卖了6个，上午比下午多卖多少个？正确的解答是（ ）
