美国动画片，导演是约翰•史蒂芬森马克•奥斯本，动作指导是梦工厂的资深动画师鲁道夫，影片和功夫有关，片中主人公是我国的国宝。这部电影的名字是

A、《玩具总动员》 

B、《机器人瓦力》 

C、《功夫熊猫》 

D、《怪兽公司》

When I talked with my grandma on the phone, she sounded weak, but by the time we （）up, her voice had been full of life.

A. were hanging

B. had hung

C. hung

D. would hang