—— Shall I tell John about it? —— No you＿＿＿＿. I don’t know his telephone number. A. needn

问题补充：

—— 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

答案：

(答案→)A. needn’t

B. wouldn’t

C. mustn’t

D. shouldn’t

解析：needn’t表示“不必要”；mustn’t表示“禁止”；wouldn’t表示“拒绝”。