题目内容

Mrs. Smith locked both the front and the back doors before she went to bed ________ that a thief might steal into the house.


  1. A.
    so
  2. B.
    for fear
  3. C.
    unless
  4. D.
    in case
B
解析:
for fear that“准恐”引导一个表示动作原因的状语从句,相当于because sb. fears that或because sb. is afraid that…
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