Questions 13 to 15 are based on the passage you have just heard.

Directions: In this section, you will hear two passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.

    13.
  • A Its long-term effects are yet to be proved.
  • B Its health benefits have been overestimated.
  • C It helps people to avoid developing breast cancer.
  • D It enables patients with diabetes to recover sooner.
    14.
  • A It focused on their ways of life during young adulthood.
  • B It tracked their change in food preferences for 20 years.
  • C It focused on their difference from men in fiber intake.
  • D It tracked their eating habits since their adolescence.
    15.
  • A Fiber may help to reduce hormones in the body.
  • B Fiber may bring more benefits to women than men.
  • C Fiber may improve the function of heart muscles.
  • D Fiber may make blood circulation more smooth.