—What a large crowd!—They in the cold wind for hours; the famous star will come today.A.

问题补充：

—What a large crowd!

—They in the cold wind for hours; the famous star will come today.

A. waited

B. were waiting

C. are waiting

D. have been waiting

答案：

A. waited

B. were waiting

C. are waiting

(答案→)D. have been waiting

解析：句意：--多么大的一伙人！--他们在冷风中站着等了好几个小时，今天著名的明星想来。这里从几个小时前这伙人就在等，一直等到现在，并且还有可能继续等下去，因为到这时明星还未来，所以应该用现在完成进行时，故选D。