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One day, a monkey rides a bike _____ the river. He is very proud (骄傲) and he thinks he can _____ very well. This time he sees a lion under a _____. The lion is big and strong and he runs at _____. The monkey is _____ and he falls into (掉入) the river. He can’t swim. He _____ loudly. The rabbit hears him. He jumps into the river. The rabbit _____ to the monkey, but he can’t help him. Luckily, an elephant comes along. He is strong. He helps the rabbit and the _____. Three friends are very happy. They go to elephant’s home and have a big _____. Then, three of _____ become good friends.