11.A.fire B.litter C.wind D.smoke
10.A.continue B.finish C.stop D.start
9.A.hungry B.angry C.excited D.sad
8.A.helps B.treats C.frightens D.kills
7.A.bad B.safe C.hard D.possible
6.A.flew B.ran C.moved D.arrived
5.A.if B.because C.until D.when
4.A.better B.more C.fewer D.stranger
3.A.smell B.touch C.dream D.want
2.A.difficulties B.business C.jobs D.problems