What did MrSmith do before he came to China?—He in a car factory．A. workedB. worksC. is w

问题补充：

What did Mr．Smith do before he came to China?

—He in a car factory．

A. worked

B. works

C. is working

D. will work

答案：

(答案→)A. worked

B. works

C. is working

D. will work

解析：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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