Lily is my litter sister. Now she is in the     1     (three) grade. She is very shy. When the classmates talk to her, she always stands there     2     silence.

Last week, her school went on a trip. They     3     (start) early in the morning and traveled for several hours on a bus. After they got off the bus, Lily noticed     4     young man standing very close to one of her teachers. Suddenly, she realized that he was     5     (try) to steal the wallet! Lily felt really nervous and didn’t know     6     to do. But she knew she had to act     7     (quick) to stop him. Luckily, she saw two police     8     (officer) standing nearby and then got an idea. She fell over and cried out painfully. When the policemen came over to help her, she told them what was happening. Then the thief was     9     (catch) right away. After that, Lily proved     10     (she) to others: Although she is shy, she is warm and clever.