He took_taxi to the airport and hurried to beijing for a meeting by_plane为什么第一是a 第二不用填
问题描述：
He took_taxi to the airport and hurried to beijing for a meeting by_plane为什么第一是a 第二不用填
答
take a taxi就是说打了个车,不强调是哪一辆车,所以单纯用a
by＋train/plane是固定用法,不能加冠词