37. How long are we are staying in London ?

36. How are they are going to Qinghai for the coming field trip ?

35. When are Marry and May　 going hiking with their parents ?

34.going, bike, riding, going, sightseeing, countryside

33. Don’t to, send, postcards, photos,

32. going, hiking, , relaxing, vacation

21.decided　 22.relaxing　 23.making　 　24.tourists　 25.clean　 26.health　　 27.hundreds　 28.below　 29.studying　　 30.babysitting

11-15 BCDBA　　 16---20 BACAA

你将于国庆节去大连看望你爷爷。你打算如何在大连度过你的假期？写一篇80词的短文与大家一起分享吧。

The keys to Unit 3

73._________　　　　 74.____________