Question

－Would you like to go shopping with me this afternoon? －I'd like to, but I'm afraid I ________．I have to write to my parents． [　　] A． can't B． mustn't C． needn't D． may not

Answer 1

答案：A
解析：

句意：“下午和我一起去购物好吗?”“我很想去，但恐怕不能去。我要给我父母写信。”表示不能干某事，情态动词用can't。