来自小晴儿的问题
该题A为何不对?
-We would appreciate it if you could stay for lunch. -Sorry,I_____.I have another appointment. A won't B shan't C can't D mustn't


该题A为何不对?
-We would appreciate it if you could stay for lunch. -Sorry,I_____.I have another appointment. A won't B shan't C can't D mustn't