7、one?2014年55.WhichofthefollowingsentencesindicatesPOSSIBILITY?A.Themooncannotalwaysbeatthefull.B.Youcannotsmokeinsidethebuilding.C.Hecannotcometoday.D.Shecannotplaythepiano.2013年64. Which of the following sentences expresses a fact? ______. A. Mary and her son must be home by now. B