Find and correct the mistakes. 1. The flight to Vientiance have departed. 2. She hasn't finish the letter. 3. I forget that girl's name already. 4. Fred;s brother just graduates from university. 5. I am trying to learn English for years. 6. I have been waiting for 2 hours, but she not come yet. 7. She reads all the works of Dickens. How many have you read? 8. I wait hare nearly half an hour for my girl-friend Joana; do you think she forgets to come? 9. Mary rests in the garden all day because she is ill. 10. Although John has been studying at the university for 5 years, he have not got his degree yet.