Using the perfect tenses.
examples: They have already brought the medicine. - The medicine has already been brought.

1. Have you touched anything here?

2. The sociologist has interviewed a lot of students.

3. Have they tested all the machines?

4. The food has caused it considerable damage.

5. John will have received the papens by tomorrow.

1. Who is your best friend?  

My best friend is my classmate Marat.

2. Where does your friend study?  

He studies in my class.

3. What does your friend look like?  

He is taller than me and he's got dark hair and brown eyes.

4. What kind of sport does your friend like?  

He likes football.

5. How did you make friends?  

We made friends two years ago when Marat came to our school.

6. What do you have in common?  

We both love playing football.

7. Do you like to spend your free time with your friends?  

Yes, I do.

8. Can you call all your friends faithful?  

Yes, I can.

9. Is the sense of humour important in friendship?  

I think it is important.

10. What are the hobbies of your friends?

My friends like to play football, watch videos and play games on their phones.

Объяснение:

1) What's your friend's name? (Как зовут твоего друга?) - My friend's name is Ivan. (Моего друга зовут Иван.)

2) How old is your friend? (Сколько лет твоему другу?) - She is seventeen. (Ему семнадцать.)

3) What does he look like? (Как он выглядит?) - He has got fair hair and blue eyes. (У него светлые волосы и голубые глаза.)

4) Is your friend a good or a bad pupil? (Ваш друг хороший или плохой ученик?) - He is very a good pupil. (Он очень хороший ученик.)

5) What do you like to do with your friend? (Что ты любишь делать со своим другом?) - We like to play football together. (Мы любим играть в футбол вместе.)

Объяснение: