He decided to concentrate on what was relevant, and still true.

D decided to concentrate their forces against one of these, so they were able to force 2.

Looking for a new direction in her writing life, she decided to concentrate on short stories.

So the team met again today and decided to concentrate on defense tonight.

But he decided to concentrate on his own problems, at least for now.

Another few days and he decided to concentrate further: on sitting still.

He decided to concentrate on the four at the table first.

He therefore decided to concentrate once more on this problem.

He decided to concentrate on the boy and the women.

But short of time, the commission decided to concentrate only on the period since 1987.