final competitors is limited though people have signed up for the short list.A. The numb

final competitors is limited though people have signed up for the short list.
A. The number of; a number of
B. The number of; the number of
C. A number of; a number of
D. A number of; the number of

(答案→)A. The number of; a number ofB. The number of; the number ofC. A number of; a number ofD. A number of; the number of解析：The number of+名词的复数“……的数量”； a number of+名词的复数“许多……。句意：最后参赛的人数有限，尽管有许多人已经填表报名。根据句意故选A。

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