12. There’s always ________ traffic in the city center at rush hour. A. full B. crowded C. heavy D. plenty 13. Half of the children were away from school last week because of an outbreak of ________ influenza. A. an B. a C. the D. 0 14. They enjoyed living there ________. A. in spite of the bad condition of the house B. because of the bad condition of the house C. owing to the house was in bad condition D. in case the house was in bad condition Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. 15. I could hear voices, but I couldn’t make out what they were saying. A. try to understand B. manage to hear C. refuse to listen D. make every effort 16. The camel likes an arid environment, but a moist environment is better fora penguin. A. dry B. wet C. warm D. friendly Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. 17. I’m sure you’ll agree that this issue is vitally important to the success of our project. A. achievement B. failure C. treatment D. completion 18. You know it’s not going to change the course of world history. It’s really quite a trivial matter. A. strange B. dangerous C. terrible D. important Mark the letter A, B, Cor D to indicate the option that best completes each of the following exchanges. 19. -"What’s the weather like in Vietnam now?" -“____________” A. It’s sunny and hot B. It’s mid-summer now C. We have rainy season D. It often rains in spring 20. - "I hear that ‘Discovery’ is a very good TV channel." -“____________” A. Yes, it’s very boring B. No, I don’t hear that C. Yes, it’s very exciting D. No, our TV channels are few