Question

—Must I go there right now?

—No，you ________.You ________ go there before supper.

A．mustn't；need B．needn't；may

C．can't；need D．won't；can

 

Answer 1

B

【解析】

Must I．..？肯定回答用Yes，you must.否定回答是No，you needn't或No，you don't have to，不能用mustn't，因为mustn't表示“不许；不准；禁止”，本题后半部用may表示允许。