—Wow what a large crowd!—Yes And they in the cold wind for hours. You know Premiere Wen

问题补充：

—Wow, what a large crowd!

—Yes, And they in the cold wind for hours. You know, Premiere Wen Jiabao is coming here.

A. will be waiting

B. have waited

C. are waiting

D. have been waiting

答案：

A. will be waiting

B. have waited

C. are waiting

(答案→)D. have been waiting

解析：考查时态。根据句意及时间状语for hours.可知用现在完成进行时。句意：——哇，人真多！——是的，他们在外面寒风中等了几个小时。你知道，温家宝总理要来这儿了。