1、Unit 1. What’s the matter?一.单项选择31.---Ihave______soreback.WhatshouldIdo?---Ithinkyoushouldgotoadoctorandget______X-ray.A.a;aB.a;anC.an;aD.an;an32.---What’sthematter______her?---Shedidn’tsleepwelllastnight.A.atB.withC.forD.on33.Whenwemeetsomethingdifficult,weshouldbelieve_____