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Small sailboats can easily turn over in the water ______ the

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Small sailboats can easily turn over in the water ______ they are not managed carefully.
A.though B.before C.until D.if
答案D 状语从句连词的选用.根据前后句的逻辑关系,空格内应填if引导条 件状语从句.句意:“小帆船如果不小心驾驶,也会容易翻.查看原帖