Theres only one dog so the answer is C. Hay el perro negro. , i hoped this helped
1a. incorrect
1b. incorrect
2. before
3. No, you only need a personal a when the object is a person.
Hope this helps love!
1. duerme, esta
2. pelea, es
3. vienen, son
4. leemos, estamos
5. contas, son
