—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
网友回答
A. mustn't；need
(答案→)B. needn't；may
C. can't；need
D. won't；can
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。