题目内容

My toothache     me. I thought it was going away, but it is getting worse now


  1. A.
    kills
  2. B.
    is killing
  3. C.
    has killed
  4. D.
    killed
B
考察时态,结合下文时间状语.可知本句叙述的是正在发生的动作,故选B
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