1. Present Perfect or Present Perfect Progressive. 1. The clock just (strike) five. 2. They (build) the sports center for a year and a half. It'll soon be ready. 3. Nick is my best friend, I (know) him all my life. 4. Ann knows Kursk very well, she already (spend) there eight years. 5 It's 10 p.m. I(work) on my computer since six and I (finish not) yet. 6. I (read) this book since morning and find it boring. 7. She (learn) English since the 2 form. 8. Jack (wait) for his friend for an hour. Will he come?

1/ Who was looking through the magazine when you came into the library? Кто просматривал журнал, когда ты вошла в библиотеку?

2) Were both Nelly's brother were giving her a lot of advce while she was cooking  some traditional Japanese  dish?  Оба Неллиных брата давали ей советы в то время, как она готовила национальное японское блюдо?           

3) She used a lot of examples while she was explaining a new rule to her class.  Она использовала много примеров, пока объясняла новое правило своему классу.     

4) Yesterday I was very busy. At 12 I  was writing my English exercises, at 4 I was having my music class and at 6.30 I was learning to work on the computer.Вчера я был очень занят. В 12 я писал мои английские упражнения, в 4 у меня был урок в музыкальной школе, и в 6.30 я учился работать на компьютере.               

5) She could not understand what he was talking about. Она не понимала, о чем он говорил.                     

6) The weather was fine and  a lot of people were swimming in the river. Погода была хорошая, и многие люди купались в реке.

продолжение статьи про правила построения предложений и случаи употребления Present Simple, предлагаю несколько упражнений на закрепление пройденного материала. ответы находятся под каждым упражнением в виде спойлера KEY

Упражнения на использование Present Simple:

1. Open the brackets and put the verbs in the correct form. — Раскройте скобки и поставьте глагол в правильную форму:

I (to like) apples.

Ann (to play) computer games every weekend.

We (to go) to work by train.

You (not to work) very hard.

My friend and I (to spend) time together in the evenings.

They (to visit) their relatives once a week.

I (not to swim) in the see on summer.

Food (to become) cold in the fridge.

My cat (not to enjoy) fish.

Her parents (not to take) her to school every day.

We (not to invite) our friends at the weekend.

You (to know) Math.

Sarah and Andrew (not to go) to dancing classes on Sundays.

We (to have) our English lessons twice a week.

He (not to have) blue eyes.

I (to have) dark hair.

[spoiler title=’KEY’ style=’default’ collapse_link=’true’]1. like; 2. plays; 3. go; 4. don’t work; 5. spend; 6. visit; 7. don’t swim; 8. becomes; 9. doesn’t enjoy; 10. don’t take; 11. don’t invite; 12. don’t know; 13. don’t go; 14. have; 15. doesn’t have; 16. have. [/spoiler