Giúp mình với ạ .! ----- Nội dung dịch tự động từ ảnh ----- I. Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. B. thing B. marathon B. mouse C. then C. match C. round 1. A. them D. their 2. A. travel 3. A. cousin D. class D. mountain A B C 1 3 2.