Hello there Woojung,

Thank you for submitting your homework. Please checkout my corrections and take note of it.. See you in our class.

Hamburgers are very tasty.-correct

I think nearly everyone in the world would like hamburgers.

Correct: I think most of the people in the world would like  hamburgers.

** Be careful with the words you used in your sentence. You can choose much better words for your sentence.

I think hamburger is tasty because it has many things inside. Like vegetables, meat.

Correct: I think hamburgers are tasty because they have many ingredients like vegetables and meat.

**At the beginning of the composition, you had 'hamburgers' as your subject, which is a plural noun. Not to confuse the readers, use it with the succeeding sentences, as well. Also, the sentence that followed was not actually supposed to be a sentence. It is still a part of the preceding sentence.

Hamburgers are not good for diet but very tasty.

Correct: Hamburgers are not good for a diet but they are very tasty.

**Use 'a' as the determiner of the noun 'diet' which was not specified. Add 'they are' in the sentence as an alternative to the word hamburgers, instead of repetition.

They taste very good anytime.

Correct: They taste so/very good every time.

**'every time' means each one (of the class specified), without exception.

My favorite burger is chicken burger.

Correct: My favorite is chicken burger.

**It is understood that the topic being talked about is 'burger'. Thus, you can omit that in the first sentence and just put it at the last part for the sentence.