He was so foolish him about it.A. to tellB. that toldC. as to tellD. for him to tell

问题补充：

He was so foolish him about it.

A. to tell

B. that told

C. as to tell

D. for him to tell

答案：

A. to tell

B. that told

(答案→)C. as to tell

D. for him to tell

解析：so +adj.+as to do sth. 表示结果。