阅读下面短文，从短文后所给各题的四个选项(A、B、C、和D)中选出能填入相应空白处的最佳选项。 It was a cold winter’s afternoon. Robert stopped for a moment when he crossed the bridge and looked down at the river below. There were hardly any (36) on the river. (37) the bridge, however, almost directly below, (38) was a small canoe (独木舟) ,with a boy in it. He was (39) wearing many clothes, Robert (40) . He shivered (打了个寒战) and walked on. (41) he heard a cry. "Help! Help!" The cry (42) from the river. Robert looked down. The boy was (43) the water and his canoe was (44) away. "Help! Help!" he called again. Robert was a good (45) . Taking off his clothes, he (46) into the river. The (47) water made him tremble all over, (48) in a few seconds he reached the (49) . "Don’t be afraid," he said and started to swim towards the river bank, (50) the boy with him. But at that (51) he noticed a large motor boat under the bridge. There were several people on the boat, all (52) in his direction. Robert (53) to swim towards the boat. "Give me a hand," he shouted (54) he got near the boat. He (55) up into a row of faces. "It’s funny," he thought. "They look so angry." Silently they helped the boy into the boat and wrapped him in a blanket. But they did not move to help Robert. "Aren’t you going to pull me out, too" Robert asked. "You!" said one of the men. Robert noticed that he was standing next to a large camera, "You ! Why, we were making a film and you spoiled (破坏) a whole afternoon’s work ! You can stay in the water!"

A. seeing
B. smiling
C. looking
D. shouting