A. At first we thought students could work on the project.
She worked on the project for two and a half years.
In total he spent seven years working on the project.
He worked on the project for about a day a week.
They were among 400 men and women working on the project recently.
I spent a lot of time working on the project.
The three worked on the project from 1934 to 1936.
We've been working on the project for quite some time.
They are working on a project of some sort together.
She's been working on a project for three and a half years.