III. Choose the best answer. (2 points) 1.__________ have you studied English? - For 3 years. A. How long B. How much C. How often D. How many 2.We have lived in Nam Dinh ______ over 20 years. A. in B. for C. from D. since 3.The students are _______ to take part in a beauty contest. A. excite B. exciting C. excited D. excitedly 4.Presents _______ in colored paper and put under the Christmas tree. A. are wrapped B. are wrap C. are wraped D. are wrapping 5. Sally is quite keen ______ the idea. A. in B. for C. of D. on 6.Would you mind ______ on the light? A. turn B. to turn C. turned D. turning 7.Jack _________ his homework between 8 pm and 9 pm. A. did B. was doing C. made D. was making 8._______ is an area of land between hills or mountains. A. Valley B. Beach C. Bay D. Island 9.Do you mind ____ I leave early? A. if B. when C. that D. Ø 10. Try to ____ amount of fat in your diet. A. reuse B. refill C. reduce D. recycle