The men looked very serious, and did not offer their opinion.

The rest said they did not have enough information to offer an opinion.

He wasn't expected to offer an opinion or even to have one.

If you do turn up any information, I will be happy to offer an opinion.

Then, the subject could offer an opinion of whether it had any effect.

Then, again, he offers his own opinion on the right course to take.

Almost no one, not even officials, would offer opinions about race relations here.

I can only offer my personal opinion, which is somewhat in the middle.

I would be grateful if you could offer your opinion on the matter.

It's interesting because I can sit and listen without having to offer an opinion.