- 二一组卷

题型：单选题题类：常考题难易度：普通

广东省汕头市金山中学2019-2020学年高二上学期英语期末考试试卷

Small sailboats can easily turn over in the water ________.

A、if not managed carefully B、if are not managed carefully C、unless not managed carefully D、unless are not managed carefully

举一反三

—______the exam.

—I , but I have some important business to deal with.

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