When the woman saw the tiger, she was ______ she couldn't move.

When the woman saw the tiger, she was ______ she couldn't move.

A.such frightened that

B.too frightened to

C.so frightened that

D.frightened enough to

答案及解析： C

so that引导结果状语从句；such后应跟名词。B、D两项中to应接动词原形。