----- Nội dung dịch tự động từ ảnh ----- Identify ONE mistake among A, B, C or D. 53. I haven't met him since a long time. A В C D 54. My brother won a scholarship since 1998, which was amazing. A B C D 55. He doesn't rely up other people for help. A В D 56. The mission of the charity is improve the quality of the lives of people with A В C mental disabilities. D