Use Past Perfect or Past Perfect Continuous They (finish) their experiment by January.
When I came, they (already\have) dinner.
I (wait) for you for an hour before you called and said that you wouldn’t come.
He (live) in Scotland for ten years before he moved to Ireland.
The children weren’t hungry because they (have) dinner already.
The child (paint) for a long time when his mother entered the room.
Mr Brown (work) for 50 years before he finally retired.
Yesterday my table was delivered. I (pay) for it two days before.
He (eat) his lunch for an hour when his boss called.
Jim was happy because he (get) a bike for his birthday.
When evening fell, the rain (already\stop).
He was very tired because he (translate) an article for two hours.
They (walk) for two hours when Kate decided to come back.
My father (come) from work by 7 o’clock yesterday.
Before we went to the cinema, we (read) an article about the film.

1.I hate to bother you, but the students are still waiting to give books for their work

2.He seized every opportunity to appear in public: he was so anxious to be talked about

3.Is there anything else to tell her? I believe she deserves to know the state of her sick brother

4.He began writing books not because he wanted to earn a living. He wanted to be read and not to be forgotten.

5.I consider myself lucky to have been to that famous exhibition and have seen so many wonderful paintings

6.He seems to know French very well: he is said to have spent his youth in Paris

7.The enemy army was reported to overthrown the defence lines and (to) have advanced towards the suburbs of the city

8.The woman pretended to be reading and not to hear the bell

9.You seem to be looking for trouble

10.It seemed to been snowing heavily since early morning: the ground was covered with a deep layer of snow

1. John's portrait is being drawn by a painter.

My flat in Moscow has been designed by an architect from London.

His bike will be fixed by Steven's father.

Jennifer's leg was examined by the doctor yesterday.

The building will be finished next month.

"Sunflowers" was painted by Van Gogh.

A new attraction is being built in the park now.

The church was built by the Christians in the seventeenth century.

2. 1 - active, 2 - passive, 3 - passive, 4 - active.

3. The injured man was taken to the hospital after the crash.

The flat had been cleaned before we arrived.

The car accident could have been caused by a driver using a mobile phone.

Because of the delay, lunch has been given to all the passengers in ten minutes.