A. What kind of business would you like to start? Why?

 - If I can start the business, I will start the business about some part of art for children. 

  => If I can start a business, I will start a business that has something to do with art for children.​​

  => Corrected : The sentences are corrected grammatically.   

Because artistic activities are very good for childrens' growth and I really interested in this thing.

  => Because artistic activities are very good for children's growth and I am really interested in this thing.​​​

  => Corrected : The sentences are corrected grammatically.   

B. Make these sentences into English.

-나는 뒤에 남겨졌다. (I was left behind.)   ✔

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-빨리 공부하는 게 좋을 거야. (It is better to study quickly.)

  => You better hit the books soon.​​​

  => Your sentence has a correct grammatical structure, but this has the correct usage/ expression.​

-당신 없이 내가 뭘 하겠어요? (What can I do without you?)

  => What would I do without you?​​​

  => Your sentence has a correct grammatical structure, but this has the correct usage/ expression.​​