​A. What is the most popular festival in your country? Why?

 My country's the most popular festival is Fireworks festival. Because It's beautiful, and it do more than another festivals.

=>  The most popular festival in my country is the Fireworks Festival, it's beautiful and it's better than other festivals.​(Grammatically corrected) . 

 B. Make these sentences into English.

 (05/13/21)

-이런, 내 수학책…

Oh, my math textbook...

-무슨 일이니?

What's wrong?

-수학책을 안 가져왔어.

I didn't bring my math textbook.​