I. Mark the letter A, B, c, or D to indicate the word that differs from the other three in the position of the main stress in each of the following questions. 1. A. engineer B. corporate C. difficult D. different 2. A. popular B. position C. horrible D. positive 3. A. selfish B. correct C. purpose D. surface 4. A. permission B. computer C. million D. perfection II. Find the word which has different sound in the part underlined. 5. A. wanted B. washed C. decided D. needed 6. A. beds B. months C. walks D. books 7. A. pictures B. watches C. washes D. brushes 8. A. homework B. brother C. open D. judo III. Choose the best answer. 9. My dad doesn’t mind…………… my mom from work every day. A. pick up B. picked up C. picking up D. picks up 10. Using computers too much may have harmful effects …….. your minds and bodies. A. on B. to C. with D. onto 11. I love the people in my village. They are so………………… and hospitable. A. friendly B. vast C. slow D. inconvenient 12. The ……………………..…… people in the village are very friendly. A. ethnic minority B. majorities C. ethnic minorities D. ethnic cultures. 13. Can you speak English ……………… .My English is not good. A. slow B. more slowly C. quickly D. more quickly 14. Viet Nam is …………. Multicultural country with 54 ethnic groups. A. a B. an C. the D. A and C 15.Which ethnic groups has the largest population in Viet Nam? A. Kinh B. Muong C. Tay D. Hmong 16. The Lao are one of ……………… many Thai- speaking peoples. A. the B. a C. an D. A and C giúp em với ạ cảm ơn ạ