Exercise 7. Read the following passage and circle the letter A, B, C, or D to indicate the correct answer to each of the questions. 
WE ALL NEED EXERCISE
    The body needs exercise. Exercise uses up food and keeps the body strong. It makes your heart and muscles strong. Exercise also makes you feel good. If you exercise a few times a week, you will stay healthy and happy. 
    Some people in America do not get enough exercise. They work in office buildings sitting in a chair all day in front of computers. They live far from their offices, and they have to drive their cars to get to work. Therefore, when they get home at night, they don’t want to exercise after work.
    Today, many Americans are overweight. This causes health problems for some people. Doctors say that exercise can help people both lose weight and improve their health. So, many people are trying to get more exercise. But it takes time to change, and when people do not see a difference right away, they lose interest in exercising. 
1. The writer says that exercise_________.
    A. only makes your muscles strong.    
    B. send blood to your muscle.
    C. is only done in a gym.
    D. makes your heart work hard to send blood to your muscles.
2. The writer mentions that in Ameica, __________.
    A. many people spend much time driving to work.
    B. most office workers can get a lot of exercise.
    C. many people are overweight because they don’t get enough exercise.
    D. Americans don’t like doing exercise.
3. Why don’t the Americans get enough exercise?
    A. They find it difficult to exercise.
    B. They don’t have enough time to exercise.
    C. They feel tired of exercising.
    D. They don’t want to lose weight.
4. According to the reading, which fact is NOT TRUE?
    A. Exercise makes you feel good.
    B. Some people do not get enough exercise.
    C. Many people have to drive their cars to work.
    D. Many people don’t want to get exercise after work because they are lazy.