单选题
At which of the following times will the bus leave the gate?
A、
[A] 8:00, 9:00, 10:00, 11:00
B、
[B] 8:30, 9:30, 10:30, 11:30
C、
[C] 8:00, 9:00, 10:30, 11:00
【正确答案】
B
【答案解析】
[解析] 第二段第一句说every hour on the half hour，意思是每隔1小时在半点。
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