66. Hormone replacement therapy for osteoporosis ____.

1. used to be effective in post-menopausal women
2. is most frequently prescribed by doctors
3. works perfectly on post-menopausal women
4. is most likely to be avoided for its side effects

67. The best treatment for osteoporosis, according to the passage, ____.

1. is Selective Estrogen Receptor Modulators
2. is chosen by the patient
3. possesses no side effects
4. is of individuality

68. To prevent osteoporosis, a healthy lifestyle should be adopted ____.

1. as early as in childhood
2. when one is in his twenties
3. after bone mass accumulation stops
4. as soon as osteoporosis is diagnosed

69. By making "the silent disease" truly silent, the author means that the actions suggested ____.

1. can be the best therapy for osteoporosis
2. can help eradicate osteoporosis
3. can help prevent osteoporosis
4. resulting damages

70. The author of this passage focuses on the ____ of osteoporosis.

1. alternative treatment
2. early diagnosis
3. treatment and prevention
4. resulting damages

(Reference keys.)