7. раскройте скобки, употребляя требующуюся форму инфинитива. 1. they seemed (to quarrel): i could hear angry voices from behind the door. 2. they are supposed (to work) at the problem for the last two months. 3. the only sound (to hear) was the snoring of grandfather in the bedroom.

1. They seemed (to be quarrelling): I could hear angry voices from behind the door.
2. They are supposed (to have been working) at the problem for the last two months.
3. The only sound (to be heard) was the snoring of grandfather in the bedroom.

1) __Is__ this your first visit to Moscow ?
2) Why __were_ you late yesterday ?
3) __Have__ you got any plans for today ?
4) __Is_ Tom still sleeping? It is 11 o'clock already!
5) __Do_ you like skating ?
1) He ___does___ not do his homework in the morning.
2) Westminster Abbey __is__ a large gothic church
3) ___Did___ you go to Trafalgar Square after English classes yesterday ?
4) Margaret Thatcher __was__  Prime Minister of the United Kingdom from 1979 to 1990.
5) He __did_ not go to London Zoo last Saturday
6) ___Did__you see Polly last week?
7) How many cups of tea__does__ your father drink every day ?

      Thanks for you letter. Sorry i haven't written for so long but i was busy with my school.Great news about you.
        As for me, i study in the school № 10 specialized in foreign languages.Our school is the best in our city, so the rules in our school are very strange and uninteresting,such as: to wear school uniform every day,to clean our classroom after classes and etc.To my mind,the rules in our school are very strict that's why we are always tired.We have a plenty of afterschool activities and they're so interesting,for instance:music,maths,theatre.
           I'd better go now as i have to do my homework.Write back soon.Bye
Yours,
Alex