54.A.waste B.clothes C.shirts D.socks
53.A.However B.Therefore C.Otherwise D.Besides
52.A.useless B.useful C.valuable D.necessary 7
50.A.aid B。affect C.develop D.protect
5 1.A.said B.talked C.thought D.smiled
49.A.more B.1ess C.higher D.10wer
48.A.topic B.method C.point D.words
47.A.slower B.cleverer C.quicker D.better
46.A.take up B.make up C.clean up D.pick up
45.A.See B.tell C.say D.believe
44.A.Other B.One C.Another D.Next