He ____ his parents about his failure in the test.

问题描述:

He ____ his parents about his failure in the test.
A:dares not tell
B:dare not tell
C:dares not to tell
D:dare not telling

选B
原因:dear在一般肯定句中 做时宜动词 用法是dear to do
在疑问和否定句中 为情态动词 用法是dear do