Choose the underlined part in each sentence (A, B,C, or D ) that needs correcting 25. What will (A) you do (B) when (C) your friends wont come (D) ? 26. Someone was knocking (A) at the door (B) when I was doing (C) the washing up (D). 27. My friend didnt drink (A) any (B) beer since we came (C) to live here (D). 28. We have written (A)to each other (B) when (C) we were (D) in primary school. 29. After (A) breakfast, Im gone (B) to walk to (C) school with (D) my friends. 30. Did (A) he go to (B) the pop concert next weekend (C) for a change (D)? LM VÀ GIẢI THÍCH GIÚP EM VỚI NHAAA :333