Youcanmovefromcitytocity.Howabout{}anoth
erpianet（星球）?AUScompanynowhasanidea：sendpeopletoMars（火星）{}20years.
Tobeginwith,thecompanypianstosend{}peopletogotoMarsfirst.Itwill{}themmouthstogetthere.whentheygetthere,theywillbuilda{}first.
ButMarsisnotaneasyplacetolive.It'srocky（崎岖的）,coldandhaslotsofsandstorms.Thetemperaturethereisabout—63degreescelsius.Also,thereis{}airforbreath.
peoplewouldhavetoliveinsideaspecialhouse.thereisgood{}init.theywouldhavetowearspecialclothesiftheygooutside.
Howwouldpeople{}there?theywillhavetomakedailythingslikeplastic（塑料）orsteel（钢）.theywillhavetofindusefulresources（资源）.thereisCO2intheair,ironintherocksandwaterintheiceon{}.Allthesecouldhelppeoplelivingthere……
Soundsinteresting?YoumightwanttogotoMarsnow.{}willthingsgowelllikethecompanyhopes?We'llhavetowaitandsee.
{}A.moveB.movingC.movesD.tomove
{}A.atB.onC.inD.to
{}A.fewB.afewC.littleD.alittle
{}A.takeB.costC.spendD.pay
{}A.carB.gardenC.houseD.busstop
{}A.noB.someC.manyD.much
{}A.airB.waterC.sandD.sunlight
{}A.makeupB.makealivingC.runoutofD.setup
{}A.MarsB.theEarthC.theSunD.theMoon
{}A.BecauseB.WhenC.SoD.But
