◎ 题干
--Growing population resulted in growing rubbish.
--There is possibility that rubbish ________the major threat to human beings.
A.becomesB.is becomingC.becameD.would become
◎ 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“--Growing population resulted in growing rubbish. --There is possibility that rubbish ________the major threat to human beings.A.becomesB.is becomingC.becameD.…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  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。