this is a dog and acat怎么翻译

a woman has to take acat, a mouse and a dog across a river i This is a dog.____is black and whte this is a dog._eyes are big and black. one of them is a white and black dog.翻译 This is a dog,划线部分是a dog.怎么改 this is she dog.怎么改 This dog is lost 怎么读 This is a big dog改成感叹句 This is a ____ dog.补充天空! this is a（ ）of dog This is a dog改成否定句 this is a big dog的意思