Whyareyoualwaystired,doyouknow?First,ifwecan't(1)well,wewillbetired.Butweareoftentoo(2).Wecan'tfinishourhomeworkintheday(3)wehavetodoitatnight.Wegotobed(4)andwegetupearlyinthemorningforschoolorwork.Mos

　　Whyareyoualwaystired,doyouknow?

　　First,ifwecan't(1)well,wewillbetired.Butweareoftentoo(2).Wecan'tfinishourhomeworkintheday(3)wehavetodoitatnight.Wegotobed(4)andwegetupearlyinthemorningforschoolorwork.Mostpeopleneedatleasteight(5)orsomemore.Ifwesleepforonlyfiveorsixhoursanight,wewillbetired.

　　Second,whenweareill,wewillbetired.Butwedon'tknowweareill.Soifyouarealwaystired,maybeyouarenotso(6).You'dbettergotoseea(7).

　　Third,maybeyoueat(8)food,likehamburgers,meat,chocolateorcoffee.Ifyouareillandtiredaftereatingsomefood,pleasedon'teatitagain.Butpleaseeatmoreifyouarewell.

　　Atlastiftheairaroundyouisn'tniceandclean,youwillfeeltired.Soplease(9)yourwindowsoftenorgooutforawalkandyouwillfeel(10).

　　1:A.sleepB.studyC.drinkD.eat

　　2:A.busyB.freeC.lazyD.angry

　　3:A.becauseB.ifC.soD.although

　　4:A.earlyB.lateC.quickD.quiet

　　5:A.daysB.monthsC.hoursD.minutes

　　6:A.illB.niceC.goodD.healthy

　　7:A.movieB.friendC.teacherD.doctor

　　8:A.toomuchB.toomanyC.muchtooD.manytoo

　　9:A.turnB.openC.closeD.keep

　　10:A.betterB.bestC.goodD.well