It was Sunday afternoon. My younger brother and I were alone at home. My parents went out. I was doing my homework while my younger brother was watching TV. Suddenly the doorbell rang. Ding-dong! My younger brother thought that it was our parents, so he opened the ____（1）____ quickly.

   A tall man wearing a black raincoat stood outside. He said that he came to sell books and asked politely if our parents were at home.

   Without thinking, my younger brother said, “No.” Then the man asked if we would like to ____  (1)  ____ some storybooks. I refused him. When I wanted to close the door, he suddenly pushed the door very hard and came into our house. He took out a ____  (2)  ____ and ordered me to tie up my younger brother's hands with a rope (绳子). I tied up his hands in a special way so that my younger brother could untie (解开) ____  (3)  ____ easily. The man then tied my hands up and locked ____  (4)  ____ of us in the kitchen. Soon, he went upstairs to ____  (5)  ____ money. I taught my younger brother to untie the rope on his hands. He then untied me. I rushed to the telephone to call the police, ____  (6)  ____ the line was dead. The doors were all locked from the outside. It was lucky that the man forgot to lock the kitchen window. We got out of the house through the kitchen window and went to the ____  (7)  ____ payphone to call the police.

   Soon ____  (8)  ____ came to our house and the man was caught. By that time, my parents had come home. We told them the whole story. My parents were ____  (9)  ____ that we were not hurt. They told me that I should stop my younger brother from opening the door to strangers. I learnt a lesson on safety.