----- Nội dung dịch tự động từ ảnh ----- Exercise 3: Choose the word (A, B, C, or D) whose main stress is different from the others in the group. 1. A. charade B. transport C. expect D. paddy 2. A. popular B. calculus C. beehive D. disturb 3. A. harvest B. collect C. peaceful D. whisper 4. A. opportunity B. inconvenient C. facility D. optimistic 5. A. activity B. traditional C. majority D. population 6. A. nomadic B. generous C. unique D. countryside 7. A. leisure B. primary C. ethnic D. detest 8. A. heritage B. pasture C. virtual D. turmeric 9. A. festival B. ornament C. custom D. terraced 10. A. addicted B. socialise C. population D. custom