填写单词 根据句子意思, 在空格中填写适当的单词, 使句子完整、正确。（共8分, 每小题1分）
There are four seasons in a year — spring, _________, autumn and winter.
Frank was _________ in 2000. He is fifteen this year.
It’s 12:00 at noon. It’s time for students to have _________ in the dining hall.
To keep _________, you’d better exercise every day and eat more fruit and vegetables.
In China, many children are taken _________ of by their grandparents in the village.
— I’ve _________ been to a water park before.
— Me neither.
What does John want to be when he _________ up?
A boy _________ himself in P. E. class. The teacher and two students took him to the  hospital at once.