- Must I hand in my exercise book now Mr. Zhao?- No you. You may give it to me tomorrow.

问题补充：

- Must I hand in my exercise book now, Mr. Zhao?

- No, you. You may give it to me tomorrow.

A. needn B. mustn’t C. can

答案：

解析：句意：赵老师，我必须选择交作业本吗？不，你不必要，你可以明天给我。A 不需要；B 禁止；C 不能；结合语境故选A。