Краткое пояснение: Указанные слова (сигналы) в скобках нужно вставить в предложения, образуя Present Perfect. Слова 'already', 'never', 'just' указывают на время совершения действия и часто используются с этим временем.
Ответ:
- 1. Stella and John have already learnt a lot about ancient culture.
- 2. My friends have never travelled by boat.
- 3. My friend has just written an email to me.
- 4. I have just read a book. It is interesting.
- 5. My friends have already done their homework.
- 6. My parents have just planned their trip.
- 7. I have never eaten smoked fish.