quick-minded and good at creating a win-winsituation, the young manager was sent to sign the document _____ the committee

He’s the only boy in our city ____ enters the Beijing University.

It is _____third time that John has failed, but he still hopes to have_____ fourth try.

The building_______ be a factory, but now it_______ a shopping centre.

The price ________, but I doubt whether it will remain so.[ ]