Question

Tom＿＿＿＿＿＿＿show his exam results to his parents

1. A.
   dare not
2. B.
   dared
3. C.
   dare to
4. D.
   dares not to

Answer 1

A
情态动词dare的过去式为dared，常用于否定句、疑问句及条件句中，没有人称和数的变化，否定式是在dare后接not，再接动词原形。dare作为实义动词时，有人称和数的变化，构成否定句时，前要加助动词，后接带to或不带to的动词不定式。