阅读下面短文，用括号内所给动词的适当形式填空 (必要时可加情态动词或助动词)。
It was another hot, dry day in the forest…
A little ant was thirsty. So he went to a river ______ (get) a drink. But the ant got too close to the river. He______ (carry) away by the flow (流动) of the river.
“Help! Help!” cried the little ant.
A dove (鸽子)______ (sit) on a tree nearby. She saw what happened to the ant. She pulled a leaf from the tree and held it in her mouth. Then she flew over to the little ant. She dropped the leaf into the water. The ant ______(climb) onto the leaf and got to safety.
“Thank you for saving me,” said the ant to the dove. “One day, I ______ (do) something to help you.”
“That is very kind,” said the dove. “But I ______ (not, think) a little ant like you could ever help me.”
A few days later, the ant saw a bird catcher ______ (stand) under a tree. He was waiting
to catch the dove with a net.
“Oh, no! My friend Dove ______ (sleep). She is in danger! I______ (help) her.”
So, he ran over to the bird catcher and stung (刺痛) him in the foot. The bird catcher cried and threw down his net in pain. The dove was able to fly away.
“Thank you, my dear friend. You______ (save) my life. Now I come to see I was wrong. I am sorry for what I said.” the dove said to the ant.