He was happy because he passed the interview. - He was happy, so he passed the interview.
She didn't get the job because she never did such a job before. - She didn't get the job because she'd never done such a job before.
They discussed the information which they found on the Internet. - They discussed the information they found on the Internet.
The babysitter came into the room and she saw that the child already fell asleep. - The babysitter came into the room and saw that the child had already fallen asleep.
The secretary said that she already sent the fax to the Hague. - The secretary said she had already sent the fax to the Hague.
He regretted that he had bought this car. - He regretted buying this car.
When we came to the station the train had already left. - When we arrived at the station, the train had already left.
I left home and then I remembered that I didn't turn off the computer. - I left home and then I remembered that I hadn't turned off the computer.
My friend gave me beautiful roses and she said that she had grown them herself. - My friend gave me beautiful roses and said she had grown them herself.
When we entered the hall the concert had already started. - When we entered the hall, the concert had already started.
The assignment turned out to be easier than we thought. - The assignment turned out to be easier than we had thought.
She was sorry that she had declined the invitation to the theatre. - She regretted declining the invitation to the theatre.
The journalist said that he had only just returned from China. - The journalist said he had only just returned from China.
We were very surprised to learn that this novel has become a bestseller. - We were very surprised to learn that this novel had become a bestseller.
He was upset. He had lost his wallet. - He was upset because he had lost his wallet.
Everybody wanted to know how long he had been in this business. - Everybody wanted to know how long he'd been in this business.
The flat was tidy. Mother had cleaned it. - The flat was tidy because Mother had cleaned it.
When the police arrived the robbers had already escaped. - When the police arrived, the robbers had already escaped.
Her hair was shiny. She had just washed it. - Her hair was shiny because she had just washed it.
She failed to present her report at the conference as she had fallen ill. - She was unable to present her report at the conference because she had fallen ill.