The little boy, ________two attempts to climb over the fence of the garden, decided to have another try.[ ]

A. having made

B. making

C. made

D. has made

根据下图所示，回答下列问题：    

(1)家兔体内的[ ]          将体腔分成          和          。它有节奏地前后          ，使          的容积时大时小，从而迫使[ ]          的扩大和缩小，完成呼吸运动。    

(2)图中实线表示家兔处于          气状态，虚线表示家兔处于          气状态。