短文改错
例：We often visit the museum last year.           答案：visited
Lucy is a nice school girl. She often              _______
help people after school. She is very              ________
ready to do good things for other every            _______
day. She cleans house for Aunt Huang               ________
on Sunday. And she fetches (取) the milks for      ________
Aunt wang's baby on every Saturday. She            ________
helps her classmate with their English twice a week.________
At the school, she often helps the teacher         ________
cleans the blackboard and hand in the exercise      ________
books. She's also good to her studies.             ________