Exercise 9. a) Say how long something has been happening. Use the present
perfect continuous tense and the prepositions for, since.
Models:
1. A young man is looking for a job. He began looking for it six
months ago. He has been looking for a job for six months.
2. Alex is working in London. He started working there on Octo-
ber 20. Alex has been working there since October 20.
1. Charles is interviewing a young man. He started interviewing him
at 11 o'clock.
2. Charles is acquainting his new colleague with his duties, He started
it half an hour ago.
3. I'm waiting for my friend. I started waiting for him at 7 o'clock.
4. It
k. It's raining now. It began raining two hours ago and it is still
raining.
5. I'm learning English. I started learning English three years ago.
6. Charles and Alex are discussing a new project. They started to
discuss it two weeks ago.
7. Mary is baking an apple pie. She started baking it at 5.
8. Charles' colleague is expecting a promotion. He expected to be
promoted in November.
9. Alex is writing a paper. He started writing it a week ago.
10. Bobby is reading for his exams. He started reading for his exams
in April.

1. what are you doing here? - i'm preparing for my report.

2. she had lived in moscow for 10 years when her sister came to live with her.

3. tomorrow father will come late.

4. it was very late. i had gone to bed and had fallen asleep when my father returned home.

5. have you ever been to london? - yes, i've been there last summer. (i was there last summer.)

6. when we came to the station, the train has already arrived.

7. he left for rostov in 1990 and since then he had lived there. 

8. tom doesn't tennis every saturday. 

9. i have already done my homework. now i can go for a walk. 

10. when will you come to see us? – tomorrow if you don’t mind. 

put in the prepositions.

1. where do you work? i work at orange computers.

2. mr. brown looks for uk sales promotion. he is accountable for the m.d. 

3. what goods are they interested in ?  

4. let’s meet on tuesday at 10. 

5. rossexport goods are of high quality. 

6. he was born in 1889 in london. 

7. what do you like to watch on tv?

8. it’s 4 o’clock in the afternoon. 

9. mr. norman is in charge with new product development. 

10. this film was on the rex cinema.

are they your friends? -yes, they are

is he your brother? - yes, he is

can he ride a bike? - no, he can't

do you want to play with the ball? - no, i don't

does she roller-skate well? - no, she doesn't

does your friend want to play the piano? - yes, he does

митохондрии-органоиды клетки , учавствующие в процессе клеточного дыхания и запасающие для клетки энергию ввиде атф

all animals and birds with wings can fly -false

penguins have got wings but they can't fly - true

1.all animals with sharp teeth can hunt - false

2.all big animals are dangerus  - false

3.all wild animals are dangerous  - false

4. all animals with long long can jump well  - false

все животные и птицы с крыльями могут летать - неправда.

у пингвинов есть крылья, но они не могут летать - правда.

1. все животные с острыми зубами могут охотиться - неправда.

2. все большие животные  опасны - неправда.

3. все дикие животные опасны - неправда.

4. все животные с длинными (ногами? )  могут подскочить хорошо -неправда.