根据短文内容和首字母提示，在下文空格处填入适当的词使短文完整。(每空一词)

An old man had a monkey. The old man liked the monkey a lot b__1._____the monkey was very clever. When the birds came to the garden, he drove them away. He also h__2._____ the old man in many other ways.

One h__3._____ afternoon in the summer, the old man was sleeping in his chair in the garden. A fly（苍蝇） came and sat on the t__4.____ of the old man’s nose. The monkey drove it away. Soon the fly came b__5._____ again and sat on the old man’s nose again. Again the monkey drove it away. Again and again, the monkey became very a__6._____. He jumped up, ran to pick a big stone. When the fly was on the old man’s nose again, the monkey hit it hard w__7._____ that stone. The fly died, and blood（血）came out of the old man’s nose. The old man’s nose was broken. Well, many people, even our friends, sometimes do things just l_8._____ the monkey. They do things too q__9._____ but they don’t think more before they do. They want to do s__10._____ good but they sometimes bring us troubles.

    阅读短文，从方框中选择适当的句子还原到短文中，使短文意思完整．

    Scientists think that many or most animals can't see colors．  1  ．To find out if dogs could see colors，scientists gave dogs food every time they played certain piece of music．  2  only when they heard this piece of music．They did not get ready to eat when they heard other pieces of music．

    Then the scientists gave the dogs food every time they showed them a certain color．The dogs got ready to eat when they saw thi s color．  3  ．Again the dogs got ready to eat．The colors were al l the same to them．  4  ，however．For example if  we put food in a red box and do this every day．A monkey wiIi always go to the red box to get the food．  5  if we then put food in a blue box．

1．____________  2．___________  3．___________4．_________  5．____________