つねさん、そのひょうけんが同じです。

As noted above Coca Cola is a brand name which would be capitalized. Often people will ask for a "Coke" when they mean any cola drink. Cola is not capitalized unless part of a name.

A paragraph about the movie Jules and Jim

Truffaut’s Jules and Jim was far from a conventional love story. The story takes place in France in the 1910’s, the years of Belle Époque, when artists from around the world gathered in Paris and revolutionized the world of art. It has three main characters, Jules, Jim, and Catherine in thean oddly-unawkward triangle relationship. There is few elements of little romance, and it is destructive, real, and at the end, has the eerie atmosphere. Instead of a boy-meets-girl type of romance, the story is specifically focused on Catherine’s personal war against the male-dominated society,; which is first represented in the scene in which the three characters are walking back home from the a play at night. Although there is no clear mention of the play they watched, it is most likely Miss Julie by the Swedish playwright August Strindberg.  Miss Julie focuses on , which talks about the defeat of the protagonist Julie in pursuing the freedom (Machiyama). Having heard Jules’s and Jim’s vulgar comments on the play, Catherine, who is on feels to the contrary,is so inspired by the life of Julie, gets disappointed with Jules and Jim and dives into the Seine. That is the moment at which she makes a commitment to rebel against the system of human society that has oppressed women for centuries (Machiyama). She dresses as a man, purposely confuses Jules and Jim, and eventually holds[uses?] a gun. Everything Catherine does in the film is her attempt to stand uponto and on  men by turning the social status upside down.

this is one of the paragraphs in my essay. it would be great if you could correct some mistakes.

a contribute after a long

提案: A contribution after a long time (away)

I logged in italki afte a long time. Today I think I want to write what I have been thinking these days.

提案:　I logged into (に)Italki after a long time. "Italki"は、名前です, 資本が-てください。

I was supposed to go to Belgium for an exchange program (交換りゅう学祭ですか?)in September, but I didn't go as an urgent problem occured with my family.

提案: 新文。The decision that I didn't to not go was right, but sometimes I regret not going.

提案: By the way, now I'm worried abour forgetting English now because I have few opportunities to use English. (今?) I have not forgotten it yet don't forget it and in order to keep remembering I have been reading web news in English and I'm going to use iItalki notebook from this time forward. :D. So somebody, pleese correct my sentence if you are free.

This is my room

Comentario:  Si es un titulo, por favor capitlizá "My Room".  Prepositions such as "is" are rarely capitalized.

This is my room, my bed is large and white with light blue and white pillows, there are two pictures
on the wall above my bed. My bed is near a large window with curtains.

Comentario: The above sentence contains a comma between "room" and "my" and also "pillows" and "there".  This usage may sound correct when spoken but when written breaks the thoughts incorrectly.  If you wish to shift between ideas, consider a semicolon ";" to stay within one sentence.  I have written a few short legal articles and the goal is always clarity and simplicity.  I suggest:

"This is my room.  My bed is large and white with light blue and white pillows.  There are two pictures on the wall above my bed.  My bed is near a large window with curtains."

or 

"This is my room.  My bed is large and white with light blue and white pillows and near a large window with curtains.  There are two pictures on the wall above my bed."

Original: The window is to the left of the bed. Next to to bed on the left, there is a small white table with a lamp
and telephone in it.

Comentario: Hay dos Métodos para revisar este oración.   One is to add a "," between "bed" and "on".  The idea "on the left" is an additional item of information.  Si no lo incluye, también es beuno. El  otro es "There is a small white table to the left of the bed with a lamp and telephone on it."

There is also a white table and a white chair. There is a mirror on the wall above the table, my room is white and large.

Comentario: Las últimas palabras son apartados.  "...table.  My room...".

Lo siento/lamento que mi español es tan malo.  Si no entiendes mis palabra, por favor escríbeme aquí.

a try to wrire write an informal letter

Moscow,
Russia,
12 nNovember 2017

Dear Bob,

Thank you for your last latter. How are you? How is your family? I hope you are well.

Comment :  It is also correct to say "How are you and your family" and combine two questions on related items.

I was so surprised to hear that you have pets: two cats and a dog. How What are their they names?
I like animals  not only pets. They are so different and a lot of animals help people.

Comment: You can say "I like all animals" or "I like animals, but not only pets".

Comment: If you wish to say много видов you can say  "There are many kinds and a lot of them help people." or "There are many types of animals and many of them help people." 

When I will am grown up I want to be a vet. I want to take care of about animals.

By the way, my grandmother give gave me two parrots on Suaturday, on my birthday. I will send you their photo.

Comment: Give =дайте.Gave = дал.

Comment: If you are sending both in one photo than your language is correct.  If you will send a picture of each parrot then you will be sending two photos.

Maybe you could [see comment]  to visit me on holiday? We can go to ski together or to skate. I look forward to your reply.

Comment: You could say "could come to visit me" or "visit me on...".
Best wishes,
Kathy

Materials

Generally speaking, all of substances are classified with as organic or inorganic. Organic substances are mainly composed of carbon, hydrogen, oxygen, or nitrogen. One of the most useful organic materials in your daily life is a plastic, because they are it is easy to deform into various shapes. As the deformable malleable materials have been developed, many kinds of products, which were once or previously made of metals or glass once, have altered to are now made of plastics.