通读下面短文，掌握其大意，然后在每小题所给的四个选项中，选出一个最佳答案。
One Saturday afternoon, Kate went to buy something for her sister and herself.
As Kate was coming out of a shop, a young lady walked towards her. She said she was
Miss Green－a good friend of Kate's sister's. Kate1her. Then she called a taxi to send Kate home. She told the driver where he should go. But Kate was 2 that it was not in the direction of her home.
"3 ?" Kate asked, full of doubt. The lady smiled.
When they came to a quiet road, a big rude man 4 on the road. He stopped the taxi driver, knocked him down, tied him, and threw him out of the 5 . At the same time, Miss Green took out a knife and 6 it to Kate. She asked Kate to keep quiet. The man then started the taxi.
"Oh, God! I'm being kidnapped (绑架)," Kate said to herself.
She tried to escape, but she didn't succeed. Suddenly an 7 came to her. She took out a lipstick（口红） from her pocket, wrote "SOS" on the window, and covered the word with her back.
A few minutes late, a police car 8 and the policemen saw the sign. When the kidnappers saw the policemen, they stopped the taxi, jumped into the grass, and 9.
The policemen then picked Kate up and sent her home. When her parents knew what had happened, they were greatly surprised. But they were 10 because their daughter had finally come back safely.
