Choose the word that has the underlined (letters) pronounced differ­ently from the others. 1. A. poor B. tour C. actual D. group 2. A. tiny B. device C. krill D. migrate 3. A. think B. depth C. further D. breath Choose the word whose main stress is placed differently from the others. 4. A. organism B. environment C. temperature D. satellite 5. A. carnivore B. entrapment C. technology D. Atlantic 6. A. secret B. ocean C. migrate D. herbicide Choose the word or phrase that could best explain the underlined word or phrase. Câu 7. Some tiny organisms are ................... along by the currents. A. carried b. taken c. flowed d. moved Câu 8. These birds..........................to North Africa in winter. a. settle b. go c. relocate d. migrate Câu 9. I’d like to contribute ___the school restoration fund A. on B.to C. with D. for Câu 10. ...............you, I would think twice about that decision. It could be a bad move. A. If I am b. Should I be c. Were I d. If I had been 11. If modern technology did not exist, we would never have such precious information. A. valuable B. precise C. confidential D. detailed 12. Some marine animals are dangerous to humans. A. living in the mountain B. living in the ocean C. living in the forest D. living in the house 13. The floor was covered in tiny pieces of paper. A. unimportant B. many C. very large D. extremely small 14. Sperm whales and sharks are carnivores. A. animals that live in the sea B. animals that only eat plants C. fish that aren't born from eggs D. animals that eat meat 15. We enjoyed the warm water of the Gulf of Thailand. A. a small sea B. a large area of sea that is partly surrounded by land C. a part of the sea enclosed by a wide curve of the shore D. a large area of water surrounded by land 16. We had an accidental meeting with an old friend at the party last night. A. unpleasant B. unexpected C. unlucky D. unacceptable 17. Whales feed on krill. A. tiny shellfish B. small fish C. sea plants D. small animals 18. ___________ is the variety of different types of plant and animal life in a par­ticular region. A. Interaction B. Herbicide C. Environment D. Bio-diversity 19. There is a large ___________ of animals that live in Nairobi National Park. A. vary B. various C. varied D. variety 20. Sperm whale population is at risk due to hunting. A. in extinction B. in danger C. on the decrease D. in fewness Choose the best option 21. You've been coughing a lot lately. You___________ smoke so much. A. shouldn't B. can't C. should D. can 22. What would Tom do if he ___________ the truth? A. would know B. has know C. knows D. knew 23. If I ___________ you, I wouldn’t buy that coat. A. am B. was C. were D. would be 24. You___________ Mark. You know it’s a secret. A. should tell B. shouldn’t tell C. couldn’t tell D. might tell 25. If Lien __________ a raincoat, she wouldn’t get a cold. A. wears B. wore C. has worn D. had worn 26. I'm not an astronaut. If I___________ an astronaut, I ___________ my camera with me on the rocket ship. A. am/ will take B. were/ would take C. were/ had taken D. were/ would have taken 27. If I ___________ in your position, I would not accept her offer. A. am B. were C. would be D. had been 28. Tom really___________ go out. He has too much homework to do. A. can't B. shouldn't C. would D. should 29. What would you do if you___________ a million dollars? A. win B. won C. had won D. will win 30. If you exercised more, you ___________ feel better. A. don’t B. didn’t C. will D. would