Nancy has been reading a long novel ________ the past two weeks.

A．for

B．from

C．before

D．till

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参考答案

答案解析

【考情点拨】考查介词。
【应试指导】句意：在过去的两个星期里，南希一直在读一本长篇小说。现在完成进行时构成形式为“have／hasbeen+doing”，表示从过去某时间开始一直延续到现在的动作，也可能会持续下去，常和au this time，this week／month，recently等状语或sinee，for引导的状语连用，故选A。

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第（21）题选

A．remind

B．believe

C．persuade

D．doubt

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