trả lời các câu hỏi B. for C. up D. After,20. Mr Hung asked Lan to go on a vacation with his family but she turned him_____.,A. off B. with C. to D. down,Mark the letter A, B, C or D to indicate the that is incorrection.,21. Mathematics, one of the compulsory school subjects, play an important role in our lives.,A. play B. subjects C. one of D. role,22. The teacher felt angrily when he saw what was happening in the classroom.,A. was happening B. in the classroom C. he saw D. angrily,Teenagers today live in a very competitive world. It is more imnortant than over to .....

Question

Accepted Answer

20. D. down

21. A. play (câu này nên là &#x27;plays&#x27; vì &#x27;Mathematics&#x27; là một chủ đề duy nhất)

22. D. angrily (câu này nên là &#x27;angry&#x27; vì &#x27;angrily&#x27; không phù hợp với cấu trúc câu)

Về câu thứ tư: 
Teenagers today live in a very competitive world. It is more important than ever to develop good study habits and time management skills.