7、it'satoiletforapet(宠物).B.Yes.Ido.Ilikestudyingthem. C.Doyouknowanythingaboutthepublicsigns?D.OK.Whatdoesthatsignonthedoormean?六、连词成句(共5题;共17分)20.(1分)you Can me help please(,?)________21.(1分)hard,very,was,it,(.)(连词成句)________22.(5分)it,is,here (.) (连词成句)23.(5分)many