阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
Autumn was coming to an end. All the insects and animals were working hard to store food for winter, except the grasshopper(蚱蜢), who spent his days    (jump) from leaf to leaf.
One day, an ant happened to pass by. She    (pull) a heavy grain of rice. “Could you give me    hand, Mr Grasshopper?” asked the ant. “My anthill is just a few trees away, but this is so heavy.”
“You come and play with me for some time, and then I shall gladly help you. Autumn is so beautiful . You should enjoy it,” the grasshopper replied.
“No, sir. You must also start preparing for the winter    you want to have enough to eat,” the ant said    (serious).
“Nothing doing. Right now it is time    (have) fun,” the silly grasshopper replied.
Hearing this, the ant shook her head and went on.
Winter came. The ant stayed     her warm anthill and enjoyed her food, the grasshopper had to suffer from cold and hunger. He went out to hunt for food when it was (warm) than usual, but he could hardly find any food and soon became weak with hunger.
“Oh, why did I waste my  (day) playing? I should have listened to the ant,” he thought with regret.