请选择DCBA1Y+h;\;f'c--- Must I finish that work today?1Z0f4G'x
--- No, you ___________ . You may finish it in three days.1Z0f4G'x
A. mustn’t1Z0f4G'x
B. needn’t1Z0f4G'x
C. shouldn’t1Z0f4G'x
D. couldn’t1Z0f4G'x