题目内容：

Peter's uncle lived in the country. Once Peter went to stay with him for a few weeks. When they went for a walk or for a drive in the car and they passed somebody ,his uncle waved. Peter was surprised and said, “Uncle George, you know everybody here. Where did you meet them all?”

“I don't know all these people,” said his uncle 

“Then why do you wave to them?” asked Peter. 

“Well, Peter,” answered his uncle, “when I wave to someone and he knows me, he is happy. He goes on his journey with a happier heart. But when I wave to some one and he doesn't know me, he is surprised and says to himself, ‘Who is that man? Why did he wave to me?’ So he has something to think about during the rest of his journey, and that makes his journey seem shorter. So I make everyone happy.

1.Peter was surprised that his uncle _______

A. waved to everybody they passed   B. knew everybody there

C. said hello to everyone            D. didn't know all the people they passed

2.“I don't know all these people” means ________.

A.I know none of these people     B.I know some of these people

C.I don't know any of these people  D.I know most of these people

3.When Uncle George waved to his friends, they became ________.

 A. worried   B. happy    C. sad      D. surprised

4.Some people didn't know Uncle George. When he waved to them, they ________.

A. became angry with him            B. thought that he must be a friend

C. thought why he was waving to them  D. didn't look at him

5.Uncle George waved to everyone so that ________.

A. he could make some more friends   B. he could surprise everyone

C. everyone would remember him     D. he would make everyone happy