1.Keepingapetathomeis_____.A.agreatfunB.greatfunC.greatfunsD.funny2.Thepuppy____ifKittyandBen_____it.A.willdie···didn'tsaveB.hasdies···haven'tsavedC.woulddie···didn'tsaveD.woulddie···wouldn'tsave3.Dogs___men'

　　1.Keepingapetathomeis_____.

　　A.agreatfunB.greatfunC.greatfunsD.funny

　　2.Thepuppy____ifKittyandBen_____it.

　　A.willdie···didn'tsaveB.hasdies···haven'tsaved

　　C.woulddie···didn'tsaveD.woulddie···wouldn'tsave

　　3.Dogs___men'sfriendsformillionsofyears.Earlymen___themforhunting.

　　A.were···helpedB.havebeen···helped

　　C.were···usedD.havebeen~···used