A．观察各图，阅读各句，然后把各图的序号填在句前的括号中。（5分）

（  ）1．There are many mice¹（老鼠）in a house．

（  ）2．The man of the house gets a cat．The cat kills² many of the mice．

（  ）3．Then the oldest mouse（老鼠）tells a little mouse，“All mice must come to my house tonight．Let's think what we can do about this cat．”

（  ）4．All the mice come．Many mice speak，but no one knows what to do．

（  ）5．At last a young mouse says，“We must put a bell on the cat．”

（  ）6．The mouse continues（继续说），“When the cat comes near，we shall³ hear the bell and run away in time．”

（  ）7．But the old mouse asks，“Who will put the bell on the cat？”the old mouse waits for a long time，but no one answers．

（  ）8．At last the old mouse says，“It's not hard to say；it is harder to do．”