问题
选择题
—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
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—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：A