◎ 题干
Their number ______ smaller and smaller.
[     ]
A. is getting
B. are getting
C. will change
D. will change into
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Their number ______ smaller and smaller. [ ]A. is getting B. are getting C. will change D. will change into …”主要考查了你对  【系动词】【现在进行时】  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。