How can children benefit from having a pet?

There are so many benefits that
pets provide for kids. First of all,kids
with pets get outside more to go for
walks, run and play and enjou all
the associated health benefits. Secondly, children aften feel more comfortable reading aloud to a pet. Thirdly, the child has a responsibility when he has to look after a pet. He will have to go for a walk with him feed him and take care of his health.
Проверьте правильно ли всё по грамматике написано. ​

1.It is one of the most famous squares of the world.We can see the Lenin's Tomb, St. Basil Cathedral, the State Historical Museum  and the Kremlin.
2. Grand Peterhof Palace, Grand Cascade 
3. The Hermitage, the Russian Museum 
4. Alexander's Garden 
5. The Bolshoy Theatre 
6. The Mariinsky Theatre 
7. The Armoury Chamber showcases ancient state regalia, ceremonial tsar’s vestments and coronation dress, vestments of the Russian Orthodox Church’es hierarchs, the largest collection of gold and silverware by Russian craftsmen, West European artistic silver, ceremonial weapons and arms, carriages, horse ceremonial harness.

1)my friend knows English badly so has to work harder at it than others 2)when did you leave the school? - I left it in 1995 3)Don`t bother him tonight! He has been doing urgent work the whole evening 4)many universities of our city are well abroad 5)have you read this article ? - No, I haven't.Tell me what it is about 6) 7)if you ring me tomorrow I will tell you the most unbelievable story you have every heard 8)Our company produce goods of the best quality 9)don`t enter the children`s room.they are preparing for their state exam now 10)when did you see him last? To my mind it was in the morning