完形填空
It was a cold winter's afternoon, Robert stopped for a moment as he crossed the bridge and looked down at the river below. There were hardly any 1 on the river. Near the bridge, however, almost 2 below, there was a small canoe（独木舟）, with a boy in it. He was not wearing many clothes, Robert 3 . He shivered（打了个寒颤）and walked on.
4 he heard a cry. “Help! Help!” The cry came from the river. Robert looked down. The boy was 5 the water and his canoe was floating away, “Help! Help!” he called again.
Robert was a good 6 . Taking off his clothes, he dived into the river. The 7 water made him tremble all over, 8 in a few seconds he reached the9. “Don't be afraid,” he said and started to swim towards the river bank,10 the boy with him. But at that 11 he noticed a large motor boat under the bridge. There were several people on the boat, all 12 in his direction. Robert 13 to swim towards the boat.
“Give me a hand,” he shouted 14he got near the boat. He15 into a row of faces. “It's funny,” he thought. “They look so 16 .” Silently they helped the boy into the boat and 17 him in a blanket. But they did not move to 18 Robert.
“Aren't you going to pull me 19 too?” Robert asked.
“You!” said one of the men. Robert noticed that he was standing next to a large 20 . “You! Why, we were making a film and you spoiled a whole afternoon's work! You can stay in the water.”
