阅读加油站！阅读短文，回答问题。
One day, a duck swims in the river. A chicken goes for a walk on the riverside. Suddenly (突然), they see
some delicious (美味的) foods. Then they run to them at the same time. The chicken says, " I am taller than
you. I am more beautiful than you. And I am older than you. So I should eat more." " Oh, no!" says the duck.
" It's unfair (不公平) I see them first. And I am younger than you. I should eat more." They quarrel (争吵)
and quarrel. At last they eat nothing. Why? When they are quarrelling, a bird eats them all.
1. Who goes for a walk by the river?
2. Is the chicken younger than the duck?
3. Why are they quarrelling?
4. Do the chicken and duck eat the foods at last?
5. Who eats the foods?