1. While i (lie)........ in bed last night, i (hear)...... a strange noise in front of tge door
2. It (rain).... heavily when i (sleep) yesterday afternoon.
3 . While Mrs Smitg (plant).... flowers in the garden, Mrs Smith (change).... the oil in his car.
4. When we (arrive)... at the airport, they (wait).... for us there.
5. He (do) .... a lot of jobs before he (work)... in this company.
6. Yesterday while i (look)... at my vomputer screen, i (start).... fell a little dizzy, so i (take) .... a break.
7. Susan (send).... a letter to her university after she (receive).... scholarship check.
8. Tom (meet).... Mary in 1986 and they have been good friends since then.
9. After they ( visit)... Paris, they (go)... to Manchester.
10. George (work) ....at the university 45 years before he (retire)....
11. After tom (wash)... his clothes, he (begin)... to study
12. Before i could say anything, they (admit).... their mistakes.
I)
1. they are going to plant the trees along the streets next year.
-> the tress (is going to be planted/are going to be planted/were being planted) along the streets next year.
2. they are building a bridge over the river.
-> A bridge (is being built/are being built/is be building) over the river.
3. they built this house in 1930.
-> this house (was built/is built/were built) in 1930.
4. he can do this exercise easily.
-> this exercise (can be done/can been done/can did) easily
II)
1. people speak Portuguese in Brazil
-> Portuguese...................................... in Brazil.
2. People don't use this room very often.
-> This room...................................... very often.
3. The Government will build a new road near my house.
-> A new road near my house.................................by the Government.