The fact has worried people the number of the deaths is still increasing.A. whatB. whichC

问题补充：

The fact has worried people the number of the deaths is still increasing.

A. what

B. which

C. that

D. when

答案：

A. what

B. which

(答案→)C. that

D. when

解析：

试题分析:考查同位语从句。由句意可知the number of the deaths is still increasing.是对fact进行的解释说明，判断为同位语从句，从句句意完整，不缺少成分，所以用that引导。句意：死亡人数仍然在增加这一事实让人们很担忧。