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   A dog has a nice piece of meat for his lunch. He goes home with the meat in his mouth. On his way home, there's a big river and there is a bridge over it. He is on the bridge and stops to have a look at the water.

What does he see in the water? He sees a dog looking at him, and he also has a piece of meat in his mouth. “His meat looks bigger than mine.” he thinks. “I must get it.” He opens his mouth and his own piece of meat falls into the river.

1．The dog has a piece of meat for his lunch. （_____）
2．There is no bridge over the river, so he can't go to the other side of the river. （_____）
3．There is another dog in the river. （_____）
4．The dog thinks there is another dog in the river. （_____）
5．The dog falls into the river. （_____）