,sorry,应选A
by后面直接加交通工具呢,所以B不对
How do you get to Beijing?----____.A.On plane B.By a plane C.In plane D.On a plane
How do you get to Beijing?----____.A.On plane B.By a plane C.In plane D.On a plane
英语人气：431 ℃时间：2020-02-03 17:12:34
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