53.A.attention B.mind C.notice D.care
52.A.look B.sight C.knowing D.reach
51.A.patients B.children C.friends D.the older
50.A.don’t B.do C.did D.didn’t
49.A.touch B.feel C.catch D.hold
48.A.order B.suggestion C.rule D.requirement
47.A.others B.another C.else D.also
45.A.cold B.warm C.wash D.bath
44.A.may B.can C.must D.will
43.A.light B.power C.plug D.electricity