Question

【题目】It was playing video games that took the boy too much time that

he have spent learning．

A. could B. must

C. might D. ought to

Answer 1

【答案】D

【解析】试题分析：句意：就是玩游戏花了这个男孩太多的本应该学习的时间。Ought to have done“本应该做却没有做”，could have done“本来可能会做”，must have done“过去一定会做”，might have done“本来可能会做”，所以D。