that a dog is

That [are/is] a dog. what a love dog!Is that her dog?_________________ That is a dog .改为否定句 That girl is a lucky dog Is that _____ dog? 中文意思：you have a dog.is that your dog?no,it is yours. That is not a____dog.It`s a toy dog. What a lovely dog!Is that her dog?No,__________.____________ is that dog walking you what is that dog colour? it is a dog It is ( ) a dog?