I was about to leave _____ the telephone rang.

  I'd like to start my own business–that's  ________ I'd do if I had the money.(2011·陕西)

In some places, women earn money ________ men work at home and raise their children.

____ we are alone, we can speak freely.

—Jack failed the driving test again.—The question is_____ we can help him avoid making the same mistake.