1. Nick wants the study German.
2. Mary refuses to help us.
3. He studies hard.
4. She speaks English fluently.
В 3 и 4у вас не указано подлежащее
5. She knows the right answer.
6. My friend always tells the truth.
7. . flies from London to Madrid.
8. His father makes a lot of money.
9. gives a lot of information.
10. Mr Brown teaches history.
Где стоят..., У вас не указано подлежащее