Краткое пояснение: Для образования Present Perfect используется вспомогательный глагол 'have'/'has' и причастие прошедшего времени (третья форма глагола). Выбор 'has' или 'have' зависит от подлежащего.
Ответ:
- 1. I have read a book. It is interesting.
- 2. He has finished reading the book.
- 3. My sister has made a cake.
- 4. My friend has written an email to me.
- 5. They have bought presents for granny.
- 6. My friends have done their homework.
- 7. I have baked a birthday cake for my mother.