54.A.taken up B.filled by C.occupied with D.picked up
53.A.therefore B.as C.but D.though
52.A.hold up B.pick up C.put up D.free up
51.A.problem B.question C.mean D.answer
50.A.more B.less C.least D.fewer
49.A.using B.talking C.moving D.handing
48.A.quite B.almost C.hardly D.nearly
47.A.attention B.attractive C.careless D.inattentiveness
46.A.with B.before C.in D.on
45.A.increase B.decline C.improvement D.rose