题目

 “A serious attack on the fairy tale as children’s literature comes from those who don’t wish children to be frightened,” writes C.S. Lewis in an essay. Those who say that children must not be frightened mean two things. First, they mean that we mustn’t do anything likely to make children frightened. Secondly, they want to keep out of their minds the fact that they are born into a world of death, violence, pain, and adventure. C.S. Lewis says he agrees with the first reason, but not the second. He comments that “since it is so likely that they will meet cruel enemies, let tOn his way to the airport, it ________ him all of a sudden that he had forgotten her birthday.A．hitB．knockedC．occurredD．beat