—Shall I tell John about it? —No, you _____. I don’t know his te

—Shall I tell John about it?
—No, you _____. I don’t know his telephone number.
A、needn’t
B、wouldn’t
C、mustn’t
D、shouldn’t
【正确答案】：A
【题目解析】：needn’t表示“不必要”；mustn’t表示“禁止”；wouldn’t表示“拒绝”。