Ответ:
- I have known my best friend for five years.
- We have just finished our homework together.
- Have you ever been to a music festival with your friends?
- She has never tried extreme sports.
- They have already planned a surprise party for their friend.
- He has helped me with my projects many times.
- We haven’t seen each other since last summer.
- Has she ever written a letter to her friends?
- I have just chatted with my friends online.
- They have been friends since primary school.
В Present Perfect используется форма have/has + причастие прошедшего времени. Слова just, never, already обычно стоят между have/has и смысловым глаголом.
