A. What is one thing you’ve never done but would like to do?

It is skydiving. When I was young, I sometimes dreamed to fly high. That time, I wanted to see the sky and clouds. And now we can fly! There are many places to do it but I will go to Switzerland and do it there. Because the landscape of the country is so amazing for me. I'm looking forward to skydiving there someday. ✔

B.

-이번 회의를 기대하고 있어요. I'm looking forward to this meeting. ✔

-모두 모였으니 회의를 시작합시다. Everyone is here, so let's start the meeting.  -> Since everyone is here, we should get started.

-오늘 의논할 사항이 많으니 시작하는 게 좋을 것 같습니다. It would be good to start as we have many things to discuss. -> We have a lotto cover today, so we should begin.

=> Another way: Your sentences are okay and these are other ways of saying them.