Question

【题目】–How many girls are there in your class ?
– _____them _____ over twenty.
A.A number of ; are
B.The number of ; are
C.A number of ; is
D.The number of ; is

Answer 1

【答案】D
【解析】句意：——你们班有多少女生？——她们的数量是超过30。a number of+复数名词，表示许多……，谓语用复数形式；the number of+复数名词，表示“……的数量”，谓语用单数形式。故选D。