Question 1: Children often get vaccinated in order to be immune to fatal diseases
A. susceptible B. vulnerable C. allowed D. resistant
Question 2: This kind of fruit helps to boost the immune system.
A. decrease B. reduce C. increase D. maintain
Question 3: Life expectancy for both men and women has improved greatly in the past twenty years.
A. Living standard B. Longevity C. Life skills D. Lifeline
Question 4: Here are some principles for people to stick to if they want to stay healthy.
A. rules B. principals C. laws D. duties
Question 5: We should consume healthy food and exercise regularly.
A. store B. purchase C. buy D. eat