5、before.A.changesB.changedC.willchangeD.haschanged()12.—Couldyougotothebeachwithusthisweekend?—I’msorryIcan’t.I studyforthehistorytest.A.canB.couldC.mayD.haveto()13.I inthissmallmountainvillagewhenIwasachild.A.usetoliveB.usedtolivingC.usedtoliveD.usedtolife()14.— you takeabustoschool?—Y