Question

She locked her room _____ a thief would break into it.

1. A.
   in case that
2. B.
   for fear that
3. C.
   in case of
4. D.
   for fear of

Answer 1

B
根据句子结构，因介词of不能引导句子，从而排除C、D；再看in case that强调客观的一种可能性，而for fear that强调主观害怕的心理。故答案选B。