If their marketing team succeeds, they __ their profits by 20 percent.
正确答案： A
本题解析：
【考情点拨】考查 if 引导的条件状语从句。
【应试指导】句意：如果他们的营销团队取得成功，那么他们的利润 将增加 20％。if 引导的条件状语从句能够分为两类：真实条件句和虚拟条件句。当假设情况发生的可能性很大时，就是真实条件句；当假设不大可能实现时，就是虚拟条件句。
根据句意，本句所表述的是客观情况，所以为真实条件句。从句中使用的时态为一般现在时，故主 句应使用将来时，故选 A。
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