You _______ stay up too late because it’s not good for your health.

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

Regular exercise (A) is really important for maintain (B) a healthy body and (C) a healthy mind (D).

Which of the following can be the best title for the passage?

Which of the following can be the best title for the passage?

My mother said I had better go on a vacation.   

→ My mother advised me _______________________________________.

Rewrite these sentences without changing their meanings.

 David had gone home before we arrived.

→ After _______________________________________________________.