Nicole's Homework:

I visited Europe last summer vacation.
I visited 7 country, but the most impressive country of these is England. because, England has clean streats and It has many large parks than other countries.
The first day of England, I went to see the Bigben and tower bridge.
Bigben is the symbol of London and the old clock tower.
The second say of England, I went to see a Buckingham palace.
I went to the park next to it,That's name is "Green park".
There were a lot of large trees brocking the sunlight giving.
and I saw a playing child, lay down the book readers.
I thought the peaple to live in the England are free.
and I wnat to live in Enland When I grow up.
This travel is beneficial experience to me.  

corrections:

I visited Europe last summer vacation. I visited seven countries, but the most impressive country among those is England. Because, England has clean streets and it has many large parks than other countries.

My first day in England, I went to see the Big Ben and Tower Bridge.
Big ben is the symbol of London and the old clock tower. On my second day in England, I went to see the Buckingham Palace. I went to the park next to it, the name of the park is "Green Park". There were a lot of large trees blocking the sunlight giving. And  I saw a child playing, laying down the book readers. I thought the people  to live in England is free. And I want to live in beneficial experience to me.

Explanation:

Review all the corrections that I have made. You are going to capitalize "I" if it is independent like "I am hungry". When writing common noun it should be written in capital letter. After punctuation specially period (.) start the word with capital letter and lastly always check your spelling. :)

Thank you so much Nicole I really enjoy reading your story about your vacation. I can feel that you really enjoyed that place. Keep on practicing how to write to enhance your skill. AJA! ^^

~ Teacher Gee <3