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【题目】If people________ cutting trees down, forests________ sooner or later.

A.keep; disappearB.keep; will disappear

C.will keep; disappearD.will keep; will disappear

【答案】B

【解析】

句意:如果人们持续砍伐树木,森林迟早会消失。

考查条件状语从句的主将从现。if引导的条件状语从句,主句的动作还未发生,谓语动词用一般将来时态will disappear;从句的谓语动词用一般现在时keep表示将来。故选B

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