49. I am writing to complain about the poor quality of your service at EL...
50. You have advertised in the newspapers that there are less than 20 children in a class; actually, there are more than 30 of them to share a stuffy room.
51. the teacher is not well-qualified and enthusiastic. She/he taught my child wrong pronunciations and spellings.
52. I would like you to give a refund; otherwise, you must change the teacher and reduce the number of children.
53. I hope to hear from you soon to get a quick resolution to this problem.
[TẶNG BẠN] TRỌN BỘ Bí kíp học tốt 08 môn
