问题
____ you know your potential（潜力）, you have to rely on many other people to get to where you are
A:While
B:Since
C:If
D:Where
B:Since
C:If
D:Where
正确答案是：
同类题型
he terrible superstorm struck last October, NewYork got a taste of ______ its future could be
The result of the experiment was very good, _____ we hadn’t expected
I a report about the air pollution in my hometown all the morning and haven’t finished it yet.
Why do we get up so early— If we ______ the flight we would have to stay herefor another day