Question

4. I do exercises for legs        once a week and most of my leg workouts include ballet movements and yoga stretching.

   A. independently   B. unconditionally

   C. amazingly   D. approximately

Answer 1

4. D句意为："我大约每星期一次做腿部运动，而且绝大部分的腿部训练包括芭蕾舞步和瑜伽伸展运动。"approximately意为"大约，近似"，符合题意。