I trabelled by air for the first time in my life yesterday.

I trabelled by air for the first time in my life yesterday. I prefer traveling by train to traveling by air. I will go to Nanjing by plane/air(同义句) how can i get to Shanghai from Guiyang?by bus?by train?by air? （二）、阅读短文,判断正（T）误（F）I used to travel by air a great deal when I was a boy（二）、阅读短文,判断正（T）误（F）I used to travel by air a great deal when I was a boy.My parents used to live in South America (with air /in air /by air ./through air) by air造句 by air是什么意思 By air 合适么? i perfer to travel by train .traveling by train is cheaper than traveling by air.i perfer to travel by train ___ traveling by train __ __ __ traveling by air. I am a dreamer on air,Dreaming on air with you!Please touch me by my E-mail.这是什么意思? Cause I need you here by my side More than the air that I breathe是什么意思 Coz I need you here by my side,more than the air that I breathe. I used to travel by air often when I was a boy. 为什么不能用 i would travel by air a great deal此处为什么只能用 i used to travel by air a great deal I would like to travel by air to london.中的by air 和 to london的先后是正确的吗?I would like to travel to london by air .这两句哪句正确? I'm doing to Japan by air.怎么改 就是换一种方式说 My students asked me-----------I would go to Beijing by air the next year