Mark the letter At B, C, or D on your answer sheet to indicate the underlined part that needs correction. 82. Hoa lives(A) near hers(B) school, so she usually walks (C) to school in the morning(D). 83. Playing football(A), swimming and do karate(B) are(C) my son's favorite sports(D). 84. I think(A) maths are(B) the most(C) difficult subject(D). 85. She asked me how long(A) does it take(B) me to finish(C) my homework(D) 86. There was (A) a lot of (B) people waited (C) in a long line outside (D) the box office. 87. You should(A) stop wasting(B) your time and doing(C) something useful(D) instead 88. Do(A) you know(B) where(C) were they(D) yesterday evening? 89: My daughter studied(A) in her room(B) when I arrived home(C) last Thursday evening(D). 90: All the students(A) in my school are revising(B) his(C) lessons carefully(D) for the coming exam. 91: Ms Truong Thi Ha said that she feels(A) ashamed because(B) she robbed (C) other teachers' document to sell(D).