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anewbusservicetoTianjinAirportstartedtooperatetwomonthsago.AnormalBregularCcommonDusual
题目详情
a new ____bus service to Tianjin Airport started to operate two months ago.
A normal B regular C common D usual
A normal B regular C common D usual
▼优质解答
答案和解析
regular 有固定时间、班次的
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