. We when somebody at the door. a) were talking / was knocking
b) had been talking / knocked
c) were talking / knocked

2. Diana at the office long when she a manager.
a) was working / had been made
b) had been working / was made
c) had been working / made

3. Sally for two years when she the race.
a) trained / entered
b) was training / was entering
с) had been training / entered

4. It and the ground white.
a) had been snowing / was
b) was snowing / had been
c) had snowed / was

5. By his death, the composer .
a) had written
b) was writing
c) had been writing

6. Jimmy out of breath because he .
a) had been / was running
b) was / was running
c) was / had been running

7. Dave ………………………… for an hour when his car broke down.
a) will drive
b) had been driving
c) drove

8. Greg said that ... a new job.
a) he will need
b) he needed
c) would he need

9. Tim complained that he ... at four o’clock in the morning.
a) is working
b) will be working
c) was working

10. He said that he ... that film.
a) had already seen
b) has already seen
c) was seen

11. Anna explained to me that the hairdresser’s ... down the road.
a) is located
b) was located
c) locates

12. Charles said that he ... me the following day.
a) would have called
b) will call
c) would call

13. Bill asked me what ... for dinner the day before.
a) I have made
b) I had made
c) had I made

14. He said that If I ... Kathrin, she ... me.
a) ask / will help
b) have asked / would help
c) asked / would help

15. I was worried if ... enough space to buy a new TV set to my room.
a) I would have
b) would I have
c) I will have

1. I used to live in a flat when I was a child. (+)

Did I use to live in a flat when I was a child? (?)

I didn't use to live in a flat when I was a child. (×)

2. We used to go to the beach every summer. (+)

Did we use to go to the beach every summer? (?)

We didn't use to go to the beach every summer. (×)

3. She used to love eating chocolate, but now she hates it. (+)

Did she use to love eating chocolate? (?)

She didn't use to eating chocolate. (×)

4. He used to smoke. (+)

Did he use to smoke? (?)

He didn't use to smoke. (×)

5. I used to play tennis when I was at school. (+)

Did I use to play tennis when I was at school? (?)

I didn't use to play tennis when I was at school. (×)

7. He used to play golf every weekend. (+)

Did he use to play golf every weekend? (?)

He didn't use to play golf every weekend. (×)

Хлоропла́сты (от греч. χλωρός — «зелёный» и от πλαστός — вылепленный) — зелёные пластиды, которые встречаются в клетках фотосинтезирующих эукариот. С их происходит фотосинтез. Хлоропласты содержат хлорофилл. У зелёных растений являются двумембранными органеллами[Пр. 1]. Под двойной мембраной имеются тилакоиды (мембранные образования, в которых находится электронтранспортная цепь хлоропластов). Тилакоиды высших растений группируются в граны, которые представляют собой стопки сплюснутых и тесно прижатых друг к другу тилакоидов, имеющих форму дисков. Соединяются граны с ламелл. Пространство между оболочкой хлоропласта и тилакоидами называется стромой. В строме содержатся хлоропластные молекулы РНК, пластидная ДНК, рибосомы, крахмальные зёрна, а также ферменты цикла Кальвина[1].