It was quite late at night. I was reading a newspaper in my room when I heard someone knocking at the door. I opened it and saw a young man with glasses standing there. Of course, I didn’t know him. He said that he was a friend of my sister’s and wanted to have a talk with her. I wanted to know if my sister had such a friend，but I had to let him in.
As he talked, I found that he knew nothing about my sister. Then I came to know that his words were not true. Suddenly my sister came back and the young man was so surprised that he didn’t know what to do for a moment. I caught the man by the arm at once while my sister was calling the police.
（  ） 1. This happened _____.
A. on one morning              B. on one afternoon
C. on one evening               D. on one night
（  ） 2. There _____ in the room when someone was knocking at the door.
A. was one person                     B. were two persons
C. were three persons                D. were four persons
（  ） 3. The writer saw the young man for the _____ time.
A. first      B. second          C. third      D. fourth
（  ） 4. The young man _____.
A. was a friend of the writer’s    B. was a friend of his sister’s
C. was a stranger to them       D. both A and B
（  ） 5. The young man was _____ when he saw the writer’s sister.
A. sad       B. surprised      C. happy        D. sorry

My mum only had one eye. She cooked for students and teachers to   41   the family when I was young.

One day my mum came to 　42  hello to me in primary school. I was so embarrassed（尴尬的） that I threw her a hateful  43 and ran out.

The next day at school, one of my classmates said, “Your mum only has one eye!” and  44  at me.

I hated my mum and decided to leave her, so I studied very hard. Later I got a chance to go abroad to study and I left my mother.　45　graduation I worked, bought a house and got   46  there. Then I had kids of my own. I was happy with my wife and my kids. But one day someone knocked at my door. It was my 47  !When she stood by the door, my children laughed at her, and I  48  at her, “How dare you come to my house and scare my children! GET OUT OF HERE NOW!” And to this, my mum 　49  answered, “Oh, I’m so sorry. I may have got the wrong  50  ,”and she disappeared.

One day, a letter regarding a school reunion（聚会） came to my house. So I told a 　51  to my wife that I was going on a business trip. After the reunion, I went to the old house.

My neighbours said that she   52   . I did not have a single tear. They handed me a letter that she had wanted me to have.

My dearest son,

I am thinking  53 you all the time. I’m sorry that I came to your house and scared your 　54　 .

I was so glad when I heard you were coming for the reunion. But I may not be able to even get out of bed to see you. I’m sorry that I was still an embarrassment to you when you were growing up.

You see…when you were very little, you got into an accident, and lost your eye. As a mother, I couldn’t stand watching you grow up with one eye. So I gave you   55  .

  …  With all my love to you!

Your mother