He continued to work in the laboratory until his death.

Until now he had been working in the ship's main laboratory.

Students who worked in the laboratory were paid and received credit.

Eight men had been working in the secret laboratory that day.

The college said yesterday that he had continued to work in his laboratory until about a month ago.

A total of 13 Chinese scientists worked in his laboratory.

Instead, she worked in the laboratory at the university and taught small classes.

Tom worked intently in his laboratory for the rest of the day.

His mother worked in the laboratory of the town's aqueduct.

She's going to work with you in your laboratory.