John'sscoreonthetestisthehighestintheclass;（）helastnight.
Itisnotuncommonforthere_____problemsofcommunicationbetweentheoldandtheyoung.
Josephwasverylucky____withhislife;healmostdidnotgetoutoftheroom.
___willMr.Forbesbeabletoregaincontrolofthecompany.
—Haveyoufinishedthework?
—Notyet,butnomatterhowharditis,we'llkeep___untilwemakeit.