用方框中所给单词的适当形式填空，使短文通顺、正确、连贯（每个单词限用一次）。
Catherine was a famous writer of children’s stories. Often she worked at home, in her quiet  . Long before her books became popular, she had to teach   how to use a computer. And she didn’t like being awayshe was worried about thieves. She was very careful. Just before   , she always put a full cup of coffee on the writing desk, and left the radio playing    a thief think someone must be at home. One day she came back after a day out, and found that there was something  in her house, There was only a little   left in the cup, and the radio was off. But when she looked at the computer, she saw it was on and someone had typed in a new story. She had no idea who had got in, or how, because none of the door and windows was   . Then she sat down to read the story. To her surprise, it was a very good one. “I will use it in my  book!’ She said.