53.A.However B,Whichever C.Whoever D.Whatever
52.A.pick it up B.get rid of it C.carry it up D.put it out
51.A.hold B.sell C.carry D.return
50.A.school B.hospital C.work D.walk
49.A .kind B.able C.strong D.eager
48.A.put down B.write down C.note down D.push down
47.A.since B.after C.before D.because
46.A.That B.What C.How D.It
45.A.briefly B.interestingly C.increasingly D.decreasingly
44.A.in no time B.sooner or later C,on time D.first of all