I think today's homework is hard to = for me such  as yesterday.
because i like most of the foods. = like / same as yesterday because I like almost all foods.
So it was quiet  = quite difficult to choose restaurants = for me to choose a restaurant.
But for the class, i thought such as  = like yesterday. (You can also say: But for the class, I did the same thing as yesterday.)
As a result, i thought out about = came up with my favorite restaurant.
It is Korean traditional restaurant.
The reason why i choose it serves = chose it is because it serves a lot of delicious foods.
so i can taste a lot of delicious foods. = so I can eat a lot of them.
In fact there are many various and delicious foods in the world = various delicious foods around the world.
but  = However, i can not taste all of it = them.
So among the many restaurants, i chose it  = the one that serves a lot of
delicious foods. (You can just leave this out because you already mentioned this in the previous sentence.)
so to explain Korean traditional restaurant, = Now I'm going to explain about the restaurant.
There are many foods that taste awesome.
First, it serves side dish  = several side dishes such as KimChi, _____, and _____. (Try to mention at least two or three examples)
Second, it serves main dish = also serves main dishes such as 갈비or  = 갈비, fish or 불고기
and then  = Then, it serves various fruits and beverages.
Finally, it looks like luxurious such as = luxurious like a palace.
that is because there are many various foods, that restaurant is
too expensive. = However, since they offer various food, the price of the meals is expensive.

Hi Myung Sung! Thanks for doing your homework. These are my tips. Always start your sentence with a capital letter (big letter). Also, avoid writing the same sentences again and again. Check your writing once your done and see if you wrote a sentence twice. Lastly, avoid saying so, and, and but at the beginning of your sentence. You can find other words that has the same meaning. That's all! If you have a question, feel free to ask me. See you! ;)