herself wondering whether she had made a mistake she felt embarrassed and at a loss.A. Ca

问题补充：

herself wondering whether she had made a mistake, she felt embarrassed and at a loss.

A. Catching

B. Caught

C. Being caught

D. Having been caught

答案：

(答案→)A. Catching

B. Caught

C. Being caught

D. Having been caught

解析：. catch sb./oneself doing sth.意思为“发觉某人/自己正做某事”， she和catch之间为主动关系，故用现在分词catching作状语，若去掉herself，则选B。