10. It is three years since he  (leave) .

9. Catherine   (finish) the letter before her mother came into her bedroom.

8. By the time I reached home,my mother   (cook) supper already.

7. I   (miss) the movie because I had to look after my sister.

6. Tony is the   (two) person to come into the classroom.

5. I invited him   (sing) the song with me. He sang it very well.

4. You will make  (错误) if you do things carelessly.

3. These  (工人) need to work in the sun for long time every day.

2. There are two big b  on his back.

Ⅰ.根据单词、首字母及汉语提示完成句子

1. I arrived at school late yesterday becauseI  (睡过头) .