giúp với ạ ----- Nội dung dịch tự động từ ảnh ----- B. Choose the word that differs from the other three in the position of the main stress in each of the following questions. 1. A. essay B. classmate C. project D. report 2. A. difficult B. however C. positive D. chemistry 3. A. noisy B. electric C. expensive D. create 4. A. renewable B. nuclear C. pollution 4. A. ferry 6. A. stadium B. explain C. postcard B. sightseeing C. national 7. A. demon B. balloon C. special 8. A. celebrate B. decorate C. exchange 9. A. public B. reliable C. evidence 10. A. comfortable B. convenient C. frequent 11. A. essay B. classmate C. project 12. A. difficult B. however C. positive D. affect D. swimsuit D. department D. welcome D. lantern D. entrance D. local D. report D. chemistry