9. She often wears the same kind of skirt as her twin sister does.

8. Bad habits，once firmed，are difficult to give up.

7. Where there are schools and colleges，there are examinations.

6. Now you was free，why not go swimming with us？

5. He was not the man that he was before.

4. The fact that she works hard is well known to us all.

3. The mountain is no longer what it used to be.

2. The question he asked was where the electrical equipment should be stored.

1. It depends on whether we have enough time.

10. She sings songs as if she is a bird.