问题
选择题
______ people are standing outside the office. _____ people there is at least over 1,000.
A．A number of; A number of
B．The number of; The number of
C．A number of; The number of
D．The number of; A number of
答案
答案：C
题目分析：句意：许多人正站在办公室的外面。这里的人数至少超过1，000。两者后都可以跟可数名词的复数，意思和用法不同。a number of 许多，若干；the number of…的数目。故选C。