题目内容

In our school there ______ a number of books on science and the number of them ______ growing larger and larger.
A．is; areB．are; isC．are; areD．is; is
B

试题分析：句意:我们学校有很多关于科学的书，这些书的数量变得越来越大。a number of 很多的，大量的，修饰可数名词复数，在句子中作主语时，动词用复数；the number of ...的数量，在句子中作主语时，动词用单数。故选B。
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