Đề V. Choose the best options to complete the text 1.0 A new study shows that women can reduce their chances of developing heart disease (1) _______ jogging for about three hours every week. The researchers atHarvardMedicalUniversityinBostonhave just reported the results of the study on the New England Journal of Medicine. The study is the first to show the effectiveness of jogging in the developing of heart disease in women. Only (2) ________ earlier studies have examined the effects of jogging on the heart, but nearly all have been done on men. The new study involves more than 72,000 women between the (3)________ of forty and sixty-five during a period of eight years. The researchers have found that women (4)________ jog at least three hours a week have a thirty to forty percent lower chance of owning a heart attack than those who do not. 23. A. by B. to C. of D. in 24. A. a little B. a few C. many D. much 25. A. age B. years C. years old D. ages 26. A. who B. which C. how D. those