—It's useless to regret what has been done. Don't make those mistakes again.—I won't. That's a(n) _____.

题型：单选题题类：真题难易度：普通

—It's useless to regret what has been done. Don't make those mistakes again.

—I won't. That's a(n) _____.

A . order B . decision C . promise D . agreement

【考点】

【答案】

【解析】

组卷次数：54次 +选题

举一反三

— By e-mail. I often send e-mails to him and tell him about my life.

—Certainly.

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