27.
I don't know what made me decide to try some new activities at the new school, but one day I chanced to show up for an after —school meeting of the Science Olympiad team. (分析下列句子的结构)
28.
While some might say Deka's success happened in spite of her background, she would say differently, that her experiences shaped her and inspired her to be the driven, young scientist that she is today. (分析下列句子的结构)
29.
But the sport's rules require that a race walker's knees stay straight through most of the leg swing and one foot remain in contact(接触) with the ground at all times. (分析下列句子的结构)