语法填空
阅该下面的短文．按照句子结构的语法情况和上下文连贯的要求．在空白处填人一个适当的词．或填入括号中所给单语的正确形式．每空不多于三个单词。
For some teenagers, being an adult（成年人）is the coolest thing in the world. Adults don' t do homework  take exams. They do what they like and make money.     wonderful！But is it true?
Last month, Grade 7 students at Sunshine School had a taste of the adult world. The teachers asked them       (finish) a piece of special homework called "Working with your parents for one day.”
Wujing's mother works as    ticket collector in a park. At 6 a. m·the 14-year-old girl set  out for work with her mother. It was dark and cold. the park opened, they did some cleaning and prepared for the visitors' coming. When the _____(visit) came, they greeted with a smile. After standing for the whole day, Wu was worn out.
"She is  (busy) and more tired than what I thought. I should help her more.” said Wu.
Li Shiyi，14，spent her day  (help) in a car. Her father is a taxi driver. She had to pick calls and[  give change back. Li thought    would be easy to sit in a car and tour the city. But soon she found that her father didn't even have time for lunch.
"Now I know how hard it is to make money.” Li said, "We should care for our parents more and ____ waste money.”