阅读理解。 It was Sunday morning. Tom and his friend Dick went to the river to go fishing. Tom took his dog Tim with him.The dog usually sat quietly on the river bank.But sometimes when he saw a small animal or a bird, he would run after and try to catch it.Dick hated the dog very much because the dog frightened (惊吓) fish. 'Why do you bring your dog here?' said Dick to Tom. 'Look at him. He's running here and there. All the fish are frightened and swim away. We must keep quiet if we want to catch a fish.' 'You are right,' answered Tom. Then he shouted at his dog. 'Be quiet, Tim.' But Tim didn't listen to him. 'We'll never catch a fish now. Shall we go home, Dick?' said Tom. 'Next time I shall not bring him again.' 'Wait,' said Dick. 'A fish is biting my line. I can feel it.' 'Be careful!' said Tom. 'Don't step forward, or you will fall into the water,' But it was too late, Dick was so excited that he forgot the danger. He stepped forward to pull the line. Down fell the boy into the water. 'Help, help! I can't swim.' Dick shouted, struggling in the river. But Tom could not swim, either, just at that moment, Tim came out! The brave dog jumped into the water and then pulled Dick onto the river bank with his teeth biting Dick's shirt, Dick was saved. He was still holding the line in his hand. On its end was a big fish. 'Look,' he said. 'I've caught the fish.' 'No, you haven't,' said Tom, 'Tim caught you and the fish.' 1. What did Tom and Dick do on a Sunday morning? They . [     ] A. went shopping B. went fishing C. went swimming D. went skating 2. Who fell into the water and got wet? [     ] A. Tom B. Tim C. Dick D. Dick and Tim 3. Who was good at swimming? [     ] A. Tom B. Tim C. Dick D. Tim and Dick 4. Who jumped into the water to save Dick? [     ] A. Tom B. Nobody C. Tim and Tom D. Tim 5. What do you think of the dog? I think the dog was . [     ] A. a useful animal to man B. a clever animal C. good at fishing D. afraid of fish