◎ 题干
Most foreign visitors to Beijing simply run out of time before they realize it, for so much of interest _____ to see.

A. is offered
B. is offering
C. offers
D. offered
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Most foreign visitors to Beijing simply run out of time before they realize it, for so much of interest _____ to see. [ ]A. is offered B. is offeringC. offer…”主要考查了你对  【一般现在时的被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。