Fill in the appropriate relative, say whether the relative clauses are essential or not to the meaning of the main sentence, then add commas where necessary

Instruction on How to care for a dog"
There are a number of aspects in the care of the dog on which to focus:
grooming;
washing a dog;
walking;
vaccination.
Grooming.
To care for your dog's coat should from the very young age. This case the breeder must take the time every day. Requires not just vigorously brush the fur of the animal. You must properly brush and comb. The brush will also massage the skin, improve its blood supply, thereby making the hair more thick and shiny.
Washing a dog
Bathe your dog often with special shampoo or powder, impossible. It will not make the hair more pure, and will only hurt the animal, as the wool will slip away natural fat grease. The consequence would be that the dog will lose such an important quality of their wool, as the water resistance, which is often ill. Before bathing and after the dog is thoroughly combed. In order to choose the right shampoo for your animal, you need to go to the vet. Dogs also can be washed with shampoo designed for humans, for example, suitable soft shampoo for children.
The paddock
The best way to teach a puppy to a leash in a small garden or any other enclosed area. It is recommended to carry out dog walking early in the morning or in the evening, during sunset. In order to preserve the health of the dog, don't let her too much to jump or climb stairs and slopes. This can lead to the fact that her fragile bones can bend.
Vaccination
Each animal must be vaccinated in a timely manner. You need to be vaccinated at the age of 2-3 months. Modern veterinary stations offer a comprehensive vaccination, instead of the usual three. It has certain advantages, but for the body of the animal it can be very hard. Some small dogs can even be laid up for a couple of days, as will feel tremendous weakness and malaise.

«Мстители» — элитная команда супергероев из комиксов компании Marvel. Она была создана писателем Стэном Ли и художником Джеком Кирби и впервые появилась в комиксе в сентябре 1963 года. Локи, сводный брат Тора, возвращается, и в этот раз он не один. Земля на грани порабощения, и только лучшие из лучших могут человечество. Ник Фьюри, глава международной организации Щ. И. Т., собирает выдающихся поборников справедливости и добра, чтобы отразить атаку. Под предводительством Капитана Америки Железный Человек, Тор, Невероятный Халк, Хоукай и Чёрная Вдова вступают в войну с захватчиком.
"The Avengers" - an elite team of superheroes from the comics. It was created by writer Stan Lee and artist Jack Kirby and first appeared in the comic in September 1963.
Loki, the half brother of the Torah, is back, and this time he was not alone. The earth is on the verge of enslavement, and only the best can save mankind. Nick fury, head of the international organization S I. So, gathers prominent advocates of justice and good, to repel the attack. Under the leadership of Captain America, Iron Man, Thor, the Incredible Hulk, Hoki and Black Widow went to war with the invaders.