问题
选择题
How do you usually go to work? Either _____ bike or _____ a bus. [ ]
A. by, by
B. on a, by
C. by, on
D. on, on
答案
答案：C
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How do you usually go to work? Either _____ bike or _____ a bus. [ ]
A. by, by
B. on a, by
C. by, on
D. on, on
答案：C