They looked at the news and some girls began to weep.A. sadB. sadlyC. sadnessD. sadnessl

问题补充：

They looked at the news, and some girls began to weep.

A. sad

B. sadly

C. sadness

D. sadnessly

答案：

(答案→)A. sad

B. sadly

C. sadness

D. sadnessly

解析：意为：听到这个消息，他们显得很悲伤。是形容词，sad在句中用作连系动词look的表语。