1. He can speak three foreign languages.
2. It can’t be that she hasn’t read this book.
3. Can I have a look at your mobile phone, please?
4. I must go on with my work.
5. You mustn’t cross the street when the light is red.
6. When must I give it back to you?
7. He may come over today.
8. You may take it if you wish.
9. They may not be at home.
10. May I borrow your calculator for a moment?