18. A new bus service to Tianjin Airport started to operate two months ago .A. normalB. u

发布时间：2020-08-15 03:11:56


18. A new      bus service to Tianjin Airport started to operate two months ago .
A. normal
B. usual
C. regular
D. mon

网友回答

A. normal
B. usual
(答案→)C. regular
D. mon
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