Part 2. Choose the best word/phrase to complete sentences below.(2ps) 1. People _______ between 1,600 and 2,500 calories a day to stay healthy. A. need B. needed C. have needed 2. The room smells bad. Somebody ________ in here. A. smoke B. smoked C. has smoked 3. In that area, it ___ difficult to find enough food in winter. A. is B. was C. has been 4. He ate a lot of junk food, so he _____ fat quickly. A. gets B. got C. has gotten 5. In the history of mankind, people_____ for new foods. A. always look B. always looked C. have always looked 6. She often ……… money to charitable organizations. A.Volunteer B. donate C. make D. help 7. Mai has ………. finished all the homework. A.several times B. yet C. already D. so far 8. Ngoc ............ eating fast food because it’s not good for her health. A.likes B. loves C. enjoy D. hates