问题
选择题
If I ____ more about diamond, I ____ cheated by that man.
A．had known, would not be
B．had known; wouldn’t have been
C．knew; would not have been
D．had known; would never be
答案
答案：B
这题考查if的非真实条件句，根据句意：如果我知道更多的关于钻石，我就不会被那个人骗了。说明是和过去相反的情况，if条件句用过去完成时，主句用would have done。选B。
