Fill in the blanks with suitable conjunctions.
1) I came up the stairs to the platform a train had stopped, I saw that the train had already started moving.
2) We hear many people started gambling on stocks they were only 14 or 15 .
3) I was arguing with him, another man came up and said that he had a ticket for the same bed, too.
4) They often move into their own apartment they have finished college or university.
5) They come together and coordinate with each other achieve tasks in the best way.
6) The proposal was unworkable there would be no penalty for those who failed to do so.
7) The weather was bad we all had yo stay at home instead.