Question

【题目】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

Answer 1

【答案】A

【解析】考查名词性从句。动词tell之后为宾语从句，再可以看出宾语从句部分为感叹句转换而来，描述形容词close用how，故选A。