You can accept someone´s apology by saying:

That´s all right!
It´s perfectly all right.
It really doesn´t matter.

Here are some expressions that are often used in meetings.

If you´re in a meeting, you can find out what the other people in the group think by saying:

What are your views on this, John?
Mr Brown, what do you think about this?
Do you agree, Mary?
Ms Smith, what´s your opinion?

If you want to interrupt someone and put forward your own opinion you can say:

If I could just make a point here…
Sorry to interrupt, but I’d just like to say that…
Could I make a suggestion?
It seems to me that…