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the students in our class is 45 and them study hard. [ ]A. The number of; the nu

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the students in our class is 45 and them study hard. [ ]A. The number of; the nu

_____ the students in our class is 45 and _____ them study hard.

[     ]

A. The number of; the number of
B. A number of; the number of
C. The number of; a number of
D. A number of; a number of

试题答案

C