Becky was in the bathroom. She was brushing her1 and the tap(水龙头)was on. "Turn that tap off. " a voice came out. Becky was scared. She looked around,but saw no one. "Turn off that tap. You are2 water!"
"Who. . . who are you?" Becky's voice was3 .
"I'm a drop of water. Do you know4 I'm from?"
"From the tap,I think," said Becky.
"Yes. But a few days ago,I was in a cloud. Then I dropped into a river. The river carried me to a lake. Then I travelled to your city and it was time5 cleaned up. "
"Get cleaned up?" Becky asked.
"Yes. I was6 during my journey,so they must clean me up. Then I travelled7 the pipes(水管) under the ground. I waited there8 you called me,and here I am. After you've finished with me,I'll go to a sewage plant(污水处理厂). Then they'll push me into the river and I'll go 9 to the sea again. "
"Again?"
"Yes,So10 not to pollute me or waste me!"