关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 关注微信公众号《课帮忙》查题 公告：维护QQ群：833371870，欢迎加入！公告：维护QQ群：833371870，欢迎加入！公告：维护QQ群：833371870，欢迎加入！ 2022-06-05 I usually travel to China ______ air. I usually travel to China ______ air. 答案： 查看 举一反三 I usually travel to China ______ air. A: in B: on C: by The pressure of pilot air is usually （） than that of starting air. The air after the rain is excellent. I love to _____ ( 吸入 ) the clean air. I used to travel by air a great deal when I was a boy. Travel in the air.
