问题
选择题
We don't go to work ______ a car _____ a no-car day. [ ]
A: in; in
B: at; on
C: on; on
D: in; on
答案
答案：D
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We don't go to work ______ a car _____ a no-car day. [ ]
A: in; in
B: at; on
C: on; on
D: in; on
答案：D