Why not __ your new ideas? Otherwise you will never know whether they are possible or not.
A．put outB．wear outC．try outD．find out
C
考查短語辨析，put out 撲滅，wear out 穿舊，try out 嘗試，find out 查明真相，句意：為什么不嘗試你的新觀點呢？否則的話你將永遠不會知道他們是不是可能的。所以選C。
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