1．Here are several reasons you should train yourself for success like a champion boxer!
A．why B．that C．as D．where
2．The Internet may also soon replace friends as the main way Americans meet their partners.
A．which B．in which C．where D．with which
3．Be sure that you have never had any regrets in your life ． only lasts for a few decades
A．that B．it C．them D．which
