NO-BOOK英语口语提高版 Lesson53-54
文本：
Lesson 53 Air
air.
2.I'll be working on the air.
gives me the air at last.
't put on airs with me.
's always talking with air.
's a castle in the air.
7.I want to give air to you.
8.I can't live on air.
Lesson 54 Sure
sure is.
!I'm very hungry.
3.I'm sure of that.
's a sure friend.
5.I feel sure of myself again.
's not a sure thing yet.
't be too sure.
looked like it was going to rain,and sure enough,it did.