—I’m afraid that I can’t do it.—Oh, you should believe in yourself. You won’t kn

题型：不详难度：来源：

—I’m afraid that I can’t do it.
—Oh, you should believe in yourself. You won’t know what you can do______ you try it.

A．if

B．because

C．until

D．while

答案

C

解析

考查连词. if 是否,如果;because因为;until直到;while然而,当……时；句意：我担心我做不到。——哦，你应该相信自己。直到你尝试过后，你才能直到自己能做什么。固定结构not…until直到...才，故选C。