Maybe everyone likes dogs, and almost everyone likes to read stories about dogs.

　　I have a friend. He has a large police dog named Jack. Police dogs are very clever. Every Sunday afternoon my friend takes Jack for a long walk in the park. Jack likes these long walks very much.

　　One Sunday afternoon a young man came to visit my friend. He stayed a long time. He talked and talked. Soon it was time for my friend to take Jack for his walk. But the visitor still stayed. Jack became very worried. He walked around the room several times and then sat down in front of the visitor and looked at him. But the visitor paid no attention to Jack. He went on talking. At last Jack got angry. He went out of the room and came back a few minutes later. He sat down again in front of the visitor, but this time he took the visitor's hat in his mouth. The visitor saw it and was surprised. He laughed and left.

1.--The young visitor stayed a long time, didn't he?

　　--_____.

　　A. Yes, he didn't 　　　　　　　　B. No, he didn't 

　　C. Yes, he did  　　　　　　　　　 D. No, he did

2.Jack became worried because _____.

　　A. he wanted to go out for a walk      

　　B. he wanted to play with him

　　C. he didn't know the young man    

　　D. he wanted to eat something

3.Jack sat down in front of the visitor because _____.

　　A. he wanted the visitor to talk to him

　　B. he wanted to talk with the young man

　　C. he wanted to show the visitor how clever he is

　　D. he wanted the visitor to leave

4.The visitor went on talking and _____.

　　A. he paid no attention to his hat     

　　B. he paid no attention to Jack

　　C. he didn't know that his hat was taken away by Jack

　　D. he didn't like Jack

5.Jack went out of the room, but came back with _____ in his mouth.

　　A. food

　　B. nothing

　　C. something

　　D. the visitor's hat

Mosquitoes(蚊子)can be seen everywhere all over the world, especially in summer. And there are more than 2,500 kinds of them.

__43_likes the mosquito, but the mosquito may like you. She thinks your blood is delicious.

She? Yes, she. It’s true that the male(雄性)mosquito doesn’t bite(咬)and only the female mosquito bites because she 　44 blood(血液)to lay eggs. She is always 　45 things or people she wants to bite. If she likes what she finds, she will bite. But if she doesn’t like your blood, she 　46 to someone else for more delicious blood. Next time a mosquito bites you, just remember you’re different from others.

If the mosquito likes you, she will land on your body 　47 letting you know. She bites you 48 quickly and quietly that you may feel nothing. After she bites, you will have an itch(痒)on your body because she puts something from her mouth together with your blood. By the time the itch begins, she has 　49　 .

And then what happens? Well, after her delicious 　50　 ,it’s dark. The mosquito feels　 51 .

She just wants to find a place to have a good rest. There, on a leaf or a wall, she begins to lay eggs, 　52　 eggs.

( ) 43.A.Everyone　　　　　　　 B. No one　　　　　　 C. Someone

( ) 44.A.needs　　　　　　　　 B. need　　　　　　　 C. want

( ) 45.A.finding　　　　　　　　 B. wants　　　　　　　 C. looking for

( ) 46.A.will turn　　　　　　　 B. turns to　　　　　　 C. turn

( ) 47.A.with　　　　　　　　　 B. without　　　 　　　C. after

( ) 48.A.so　　　　　　　　　　 B. such　　　　　　　 C. very

( ) 49.A.flies away　　　　　　　 B. flew away　　　　　 C. flown away

( ) 50.A.breakfast　　　　　　　 B. dinner　　　　　　　 C. lunch

( ) 51.A.tiring　　　　　　　　 B. tired　　　　　　　　 C. relaxing

( ) 52.A.3 hundreds　　　　　　 B. hundred of　　　　　 C. hundreds of