5. She has just bought new trousers and don't have much money with her.
6. -No, she has already seen the film
7. I'm very happy. I have just received a letter from my parents.
8. I haven't read this book yet.
9. My mother is angry with me. I haven't thrown away our rubbish today yet.
10. -Are your friends here yet?
-Yes, they have just arrived
11. They haven't seen it yet.
12. Those who has already done the exercise number one, please, do exercise number two.
13. He has just lost the keys
14. Yesterday the bus ticket costED 9 rub, today it costs 10 rub. The price for the tickets has already gone up.
15.-Yes, I've already congratulated her.
-Am I the only person who hasn't congratulated her yet?
16. -Has it stopped raining yet?
-Yes, it has just stopped raining.
17. I haven't done the household duties yet, that is why I can't go with you to the cafe.
18. Have you heard a new song by Madonna yet?
19. I'm sorry, I haven't watched it yet.
20. We have already finished doing this exercise.
Past perfect - это Have(I, We, They) или Has(He, she, it) + глагол в третьей форме(если неправильный глагол) или глагол + ed, (если правильный)
Already употребляется в утвердительных предложениях. ТОЛЬКО В УТВЕРДИТЕЛЬНЫХ. В вопросительных меняется на yet.
Удачи