Помогите пожалуйста с английским срочно!

1. After Howard finishes his studies he intends to work in his father's company.
Present simple

2. I was reading the instructions on the test sheet when the headmaster came in and wished all of us good luck.
past continuous and past simple

3. By the time I finish my thesis I will have worked/will have been working on it for over
present simple and future perfect\perfect-continuous

4. Ancient Greek athletes received a wreath of olives after they had won a race.
past simple and past perfect

5. The last time I went to the library I borrowed three books on painting.
past simple

6. I screamed when I looked down and saw a snake at my feet.
past simple

7. By the time I get to bed I will have worked for 8 hours.
present simple and future perfect

8. Jane hasn't arrived yet. I have been waiting since noon, but there's no sign of her.
present perfect and present perfect-continuous and present simple

9. Yesterday, while I was sitting in class, I had nosebleed. The boy who was sitting next to me gave me a paper handkerchief.
past continuous and past simple

10.All the passengers had fastened their seat belts by the time the pilot made his announcement.
past perfect and past simple

11.I'll return his wallet the next time I see him.
future simple and present simple

В первом ошибка

Мне кажется или в первом предложении ошибка полюбасу, если окончание ed значит прошедшее, например finished, finishes это настоящее время