问题

Do not let any failures discourage you, for you can never tell ________ close you may be to victory

A:how
B:that
C:which
D:where

正确答案是：

同类题型

You should know the first thing you must do now is to do your homework.—Thanks for reminding me.

He takes notes by key words.

This painting is splendid, but ______ we actually need it is a different matter.

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―Thank you very much for giving me a hand when I was in trouble.―Don’t mention it. I only did what anyone else _______ in my place.