根据汉语意思完成句子。
1. Li Ping五岁时开始学习弹钢琴.
Li Ping started to learn to play _____ the _____ _____ piano the five.
2. 从星期一至星期五,我们一周上五天学.
From _____ to _____ , we go to school five days a week.
3. 他性格外向,篮球打得也很好.
He is _____ and _____ at _____ basketball.
4. -周六下午你要干什么? -没什么要紧的事.你呢?
— What are you doing Saturday afternoon?
— Nothing serious. _____ _____ ______ ?
5. -我们一块做水果沙拉吧. -好主意.可是我们没有酸奶呀?
— Let's _____ _____ _____together.
— Good idea. But we haven't got any yogurt.
6. 夏季常食元葱对身体健康有好处.
In summer, _____ good for health _____ _____onions often.
7. 包括班长,我们班有十五名同学参加了昨天的比赛.
Including our_____ , fifteen students in our class _____ _____ in yesterday's competition.
