— Can I tell Peter about the news?
— No, I don't want anyone else to know it. You_____ keep it to yourself.
- A.must
- B.need
- C.can
- D.may
答案
正确答案:A
知识点:情态动词

must表示强制,必须。

要清楚must 表示强制,必须的意思。
