题目内容

In our school libray,there____a number of books on science and the number of them_____growing larger and larger.
A.is;are                 B.are;is               C.have;is
B
表示在某地有用there be，a number of表示许多的意思，后跟可数名词复数，故第一个空填are，the number of表示是什么的数量，主语为单数，故be用is，故本题选B。
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