13.In the Air
ExerciseⅠ

A.(c)B.(b)C.(b)D.(a)
(a)-(h)  (b)-(g)  (c)-(e)  (d)-(f)
(a)wanted (b)hated (c)made (d)shout (e)scream (f)have (g)said (h)pay (i)fell
(a)stingy (b)bargain (c)let (d)for free
(a)﹩10 (b)10 minutes (c)not very big/small (d)a bargain
(a)far away (b)generous (c)save (d)difficult/hard


ExerciseⅡ
(a)free (b)freeom (c)freed (d)free


PS：这可是我一字一字打上去的,还没打完,明天我再接着打.