问题
选择题
He gave up _ two years ago. That's to say, he is a non-smoker now. [ ]
A. smoke
B. smoking
C. to smoke
D. smoked
答案
答案：B
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He gave up _ two years ago. That's to say, he is a non-smoker now. [ ]
A. smoke
B. smoking
C. to smoke
D. smoked
答案：B