1. My mum used to be very good at sport when she was at school.
2. Before yesterday, I have never seen the film.
3. I wish I could speak Portuguese.
4. If she slept more, she wouldn`t feel so tired.
5. You don`t need to pay to go to the museum.
6. You must not play ball games in the park.
7. If you don`t study, you will fail the exam.
8. We are known to each other for a year.
9. He doesn`t get along well with his sister.
10. Russian is less easy than German.