7、rth______. A.tolistentoB.listeningtoC.tobelistenedtoD.beinglistenedto17.Althoughtheteacherdidn’tmentionanynames,everybodyknewwhohewas______. A.speakingtoB.turningtoC.referringtoD.talkingto18.Thesingeranddancer_____askedtosingasonginpublic,andsheagreedhappily. A