Because Valentines Day is the day that the girl gives some chocolatte to rhe boy to express her mind. People celebrate since it is a chance to give some presents to someone.

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Thank you for doing your homework, Eric! Your I am happy that your ideas are really from you. ^^ It is good a way to develop your skills.

Your homework was: 

"What is Valentines Day for you and why most of the people celebrate this?"

Let us fix your sentence.

~Valentines Day is the day that the girl gives some chocolate to the boy to express her mind. People celebrate since it is a chance to give some presents to someone.

Misspelled words:

chocolatte - chocolate

rhe- the

Very few error, Eric. Be more aware so that next time you cannot misspell some words. ^^ Take care always and see you next week. Enjoy your weekend.

~Teacher Cassie