问题描述：
1.There （） a large number of students in our school .The number of them ( ) 5,10
There （ ） a large number of students in our school .The number of them ( ) 5,100.A.is,is B.is,are C.are,are D.are,is
There （ ） a large number of students in our school .The number of them ( ) 5,100.A.is,is B.is,are C.are,are D.are,is
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