5предложений о проблемах поднростков

teenagers all over the world have a lot of problems.first of all it is the wish to be independent and to decide everything themselves.they argue with parents about the way they look, study and spend free time.they think that they are full-grown enough to do what they want.sometimes teenagers begin to drink alcohol, to smoke to show that they are adults.teenagers don’t want to have duties but speak a lot about their rights.but many teenage problems finish when a child grows up.

a

1. He left quite early but he hasn't arrived yet.

2. We haven't seen each other since we left school.

3. Have you ever written a poem?

4. She has never been to Istanbul.

5. I lent him €50 last week, but he hasn't paid me back yet.

6. I don't see them often but  I've known them for ten years.

7. What year did you leave school?

8. We're lost. We have already been down this road twice.

9. I sent her an email last week, but she hasn't replied yet.

10. They have lived in that house since 1980.

b

1 A How long have you been at university?

  B I started two years ago. I’m in my third year now.

  A Do you live with your parents?

  B I lived with then for the first two years but then I moved into a student hostel last September and I’ve lived there since then.

2. A Has your bother found a job jet?

   B Yes, he’s just started work in a hotel

3. A Have you ever been to Nobu – that new Japanese restaurant?

   B Yes, we went there for my birthday

   A What was it like?

   B The food was fantastic but it cost a fortune!

Объяснение:
Когда мы говорим о действиях в без указания времени совершения действия, то используем Present Perfect. В предложении могут быть слова yet, already, never/ever, just.

А Past Simple употребляется, когда мы называем точное время совершения действия.

Present Perfect употребляется, когда действие продолжается в настоящем или произошло в еще не законченный период времени (в предложении есть слова today, this week/month и т.п.). Past Simple употребляется, когда действие уже закончилось и не имеет связи с настоящим и в предложении есть слова yesterday / last week/ two days ago и др.

present perfect simple:

1) I have just eaten chocolate

2) She has already done her homework

3) Mom has made a cake this morning

present perfect continuous:

1) It has been raining all morning

2) I have been studying at school for a long time

3) I have been making this cake since afternoon

present simple (negative):

I don't like this wicked game

I don't go to the parties

My mom doesn't work as a doctor

positive:

I love school

Mr. Bob teaches us history

My favorite subject is english

question:

Do you like school?

Does she do homework ?

Do they buy a cake often?