He his parents that he has failed in the exam.A. dares not tellB. dares not tellingC. dar

He his parents that he has failed in the exam.

A. dares not tell
B. dares not telling
C. dare not tell
D. dares not to tell

A. dares not tellB. dares not telling(答案→)C. dare not tellD. dares not to tell解析：既可以作行为动词又可作情态动词的词除了need以外还有dare.①dare：作情态动词用，一般用于否定句、疑问句及条件状语从句中，一般不用于肯定句中。有时态变化，但没有人称变化。如：He dared not go out alone at night. 他夜晚不敢独自出去。I daren’t ask you, because I thought I was wrong. 我没敢告诉你，担心自己错了。②dare：作行为动词用，在肯定句中常后接带to 的不定式；否定、疑问句中要用do, does, did等助动词，在否定和疑问句中可接带to或不带to的不定式。有人称和时态变化。如：I didn’t dare (to) come. 他不敢来。Does he dare (to) swim across the river? 他敢游过河吗？本题中dare是情态动词的用法。

我也是这个答案