问题

you know your potential, you have to rely on many other people to get to where you are

A:Since
B:If
C:While
D:Once

正确答案是：

同类题型

I refuse to accept the blame for something________was someone else’sfault

______abroad for a tour can be a worthwhileexperience to a senior high student.

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Some young people these days just ________ go out oftheir homes to contact the real world．

Look at the man in the classroom! Is he Mr. White—No,it __________be him. He’s eating in the dining hall.