II. Choose the best answer. 1. The US is a ____ country with over 80 ethnic groups. A. multi-cultural B. bi-lingual C. rich D. ethnic 2. The volunteers have to work much ______ usual to save the dying animals from the forest fire. A. as hard as B. more hard than C. harder than D. the hardest 3. In 2010, Ha Noi _____ its 1000th anniversary. A. celebrated B. commemorated C. worshiped D. remembered 4. The ____ of quan ho singing has been recognised as a world heritage. A. preservation B. procession C. performance D. song 5. Lang Lieu couldn't buy any special food ___ he was very poor. A. although B. when C. while D. because 6. Tam is a beautiful girl; ____, she's kind-hearted. A. therefore B. however C. moreover D. otherwise 7. While I ______ the performance, I met one of my old friends. A. watched B. was watching C. watch D. am watching 8. She told me a story ____ I found hard to believe. A. what B. which C. in which D. at which 9. She is famous_________her intelligence. She designs many social styles. A. in B. for C. with D. into 10. We__________ wear uniform at school from Monday to Saturday. That's good way and equal to everyone. A. crowd B. crowded C. full D. busy 11. Tet is an occasion for family___________ in Viet Nam. A. visiting B. meeting C. reunions D. seeing 12. Saint Giong was unable to talk, smile, or walk_________ he was three years old. A. if B. because C. while D. even though 13. We do not have many carnivals in Viet Nam; ________ ,we have many tradition festivals. A. nevertheless B. while C. although D. because 14. Would you like to go___________ a walk___________ the park this afternoon? A. to - at B. for - at C. to - in D. for - in 15. At school, the teacher and students___________ follow the rules. A. has to B. have to C. need to D. haven't to 16. Children need a caring environment to develop_______mentally______physically. A. and - and B. both - and C. the - the D. in - and 17. _________ you study harder, you won't be able to pass the examination. A. Unless B. Because C. If D. Without 18. The buses were very _____this morning. We can't go to the church with you in time. A. crowd B. crowded C. full D. busy 19. He _________ cross the street when the traffic light is green for pedestrians. A. should B. shouldn't C. ought D. oughtn't 20. You___________ use your mobile phone on the plane. A. must B. mustn't C. don't have to D. have to help!!!!