Question

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

A. in case that        B. for fear that                     C. in case of          D. for fear of

Answer 1

B

解析:

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。