I have no doubt______he will overcome all his difficulties.A、whetherB、whenC、th

游客2023-09-25  10

问题 I have no doubt______he will overcome all his difficulties.

选项 A、whether
B、when
C、that
D、if

答案 C

解析 我相信他将战胜所有的困难。doubt前有no修饰,双重否定即肯定,并且从句不缺成分,所以用that。
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