1. 대부분의 학생들은 열심히 공부한다.

     Most of students study hard. 
→ Most of the students study hard.



2. 미치도록 바쁜 하루였다.

     I have been a hectic day. 

  → It has been a hectic day.



3. 제일 좋아하는 영화배우는 누굽니까?

     What is your favorite actor? 
  → Who is your favorite actor?



4. 나는 5년전에 졸업했다.

     I graduated five years before. 
  → I graduated five years ago.



5. 그 약은 효과가 없다.

     The medicine wasn't work.
 → The medicine wasn't working.



6. 김치는 우리 건강에 좋다.

    Kimchi is very healthful to us. 
→ Kimchi is very healthy for us.



7. 내 생일은 이 달 24일입니다.

     My birthday is in the 24th this month. 
→ My birthday is on the 24th of this month.



8. 가장 큰 환경 문제는 대기오염이다.

   The most environment problem is air pollution.
→ The biggest environmental problem is air pollution.