1. When I (look) out of the window, I (see) John.
When I looked out of the window, I saw John.
2. you ever (play) the piano since you left school?
Have you ever play the piano since you left school?
3. I (not see) him for two days.
I haven’t seen him for two days.
4. When he (try) to open the door, he (drop) his key.
When he tried to open the door, he dropped his key.
5. They (live) in this house since 1987.
They have been living in this house since 1987.
6. My father (wash) his car while my mother and I (prepare) dinner.
My father was washing his car while my mother and I were preparing dinner.
7. you (meet) her yesterday?
Did you meet her yesterday?
8. Mary (be) in London for three days.
Mary has been in London for three days.
9. The headmaster (enter) the classroom when they (write) their exams.
The headmaster entered the classroom when they were writing their exams.
10. He (buy) a new car last week.
He bought a new car last week.
11. I think that they (arrive) tomorrow morning.
I think that they will arrive tomorrow morning.
12. Last Wednesday they (play) chess after they (do) their homework.
When he (arrive), we (have) dinner.
When he arrived we were having dinner.
2. he (already arrive) in Los Angeles?
Has he already arrived in Los Angeles?
3. I (not see) him for two days.
I haven’t seen him for two days.
4. Father (smoke) his pipe while mother (prepare) the tea.
Father was smoking his pipe while mother was preparing the tea.
5. She (already do) the washing up.
She has already done the washing up.
6. Look! It (snow) now.
Look! It’s snowing now.
7. She (have) a motorcycle accident last winter.
She had a motorcycle accident last winter.
8. Last night I (read) a book when suddenly I (hear) a scream.
Last night I was reading a book when suddenly I heard a scream.
9. Carol (already start) her new job.
Carol has already started her new job.
10. Last week my rabbit (run) away, and I (not find) it yet.
Last week my rabbit ran away, and I haven’t found it yet.
11. The teacher (write) sentences on the board while the children (fill) the words in the text.
The teacher was writing sentences on the board while the children were filling the words in the text.
12. Water (boil) at 100 degrees Celsius.
Water boils at 100 degrees Celsius.
13. What Peter (do) at the moment? He (have) a bath.
What Peter is doing at the moment? He’s taking a bath.
14. I (go) to the theatre yesterday evening.