题目内容

---What did Mr.Smith do before he came to China?
---He         in a car factory.


  1. A.
    worked
  2. B.
    works
  3. C.
    is working
  4. D.
    will work
A
本题考查动词时态。由问句可知是一般过去时,故答案选A,work的过去式。
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