I had a very strong impression that it all was one man.

It seems they left a strong impression on each other.

She had made far too strong an impression on him.

This made a strong impression on a few people, though.

Again, no answer, only a strong impression that he was inside.

Those members of the community still alive during 1944 made a strong impression on the author.

Yet there is a strong impression that they have become more common.

I had a strong impression that my company was not wanted.

I have a strong impression of a man who was waiting for something.

At the same time I had the strong impression that she was completely lost.