B. 1. C

2. A

3. B

4. A

5. C

6. C

C. 1. Harry haven`t left for this holidays yet

2. I have never study german before

3. They haven`t finished (...) yet.

4. She has finished her project already because she worked(либо have been working, но по заданию у вас 2 времени доступно) all night

5. Did you go to the party last night?

6. Sasha took her driving test a year ago.

7. I haven`t seen you for ages

8. The teacher has just came into the classroom.