cats and dogs have different ways of showing their feeling.

cats and dogs have different ways of showing their feeling.
Cats and dogs have different ways of showing their feeling.If a dog barks,you know someone is at the door of your 21 .But cats 22 do that.Although(虽然) 23 wag(摇)their tails,it means 24 feelings.25 a dog wags its tail,you know it’s 26 .However,when a cat wags its tail,it is angry.They also lick(舔) their owners.It is a way dogs 27 their love for the owner.28 not for cats.If cats lick your hand,they just want to eat 29 salt on the hand.Nothing more.To show they 30 you,they may sit on your hand.( )21.A.house B.office C.school D.shop ( )22.A.often B.usually C.always D.never ( )23.A.one of them B.both of them C.each of them D.neither of them ( )24.A.different B.the same C.similar D.true ( )25.A.Then B.And C.If D.But ( )26.A.angry B.happy C.sad D.tired ( )27.A.bark B.sing C.talk D.show ( )28.A.And B.Or C.So D.But ( )29.A.a B.an C.the D./ ( )30.A.believe B.hate C.know D.love