They didn't see me coming because they were deeply engrossed in conversation.

Three white-smocked men were deeply engrossed in an experiment at the far end.

Especially when the man next to you is deeply engrossed in a crossword puzzle.

Professor Lock was deeply engrossed in a book when she went in.

She saw him, deeply engrossed in conversation with the captain and a group of passengers.

Seated in the back of the car, he was reading, deeply engrossed in some business matter.

The young woman was deeply engrossed in her work.

I, on the other hand, was deeply engrossed in figuring out which way was up.

Jim saw them near the exit, apparently deeply engrossed in conversation.

Already, he was deeply engrossed in his work.