( )16.A.l___ttleB.th___ngC.wh___teD.w___th( )17.A.yell___B.br___nC.wind___D.kn___( )18.A.worr___B.sk___C.onl___D.man___( )19.A.s___oolB.___airC.___inaD.mu___( )20.A.___eseB.___eyC.bro___erD.___ree()...