问题
选择题
They are waiting ___ a bus ___ the bus stop. [ ]
A. for; in
B. on; at
C. with; at
D. for; at
答案
答案：D
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They are waiting ___ a bus ___ the bus stop. [ ]
A. for; in
B. on; at
C. with; at
D. for; at
答案：D