간단한 질문 세개 부탁드립니다...

1. the worst idea will be something that each team thinks will make the problem worse, with the solution it offers being ineffective or unprofitable

여기서 being 쪽이 잘 이해가 안갑니다 ㅠㅠ it이 가르키는것도 뭔지 잘 모르겠어요 ㅜㅜ

2. when i do this exercise, i ask participants to pass both to me, and i proceed to shred the best ideads.
after the time they spend generating these great ideas, they are both surprised and not too happy.

여기서 after가 ~때문에 로 쓰엿던데 after 에 저런 뜻도 있나요??3. they look at the horrible idea that was passed their way.
이 문장이 어떻게 가능한 것인지 원래로 어떻게 바꿔야할지 막막합니다.....굳이따지자면 원래 4형식문장이였던것 같은데 잘 모르겠습니다 ㅜㅜ부탁드립니다