it was playing computer games that cost the boy plenty of ti

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/05 19:54:35

it was playing computer games that cost the boy plenty of time that he doing his lessons
情态动词的选择 might have spent must have spent could have spent ought to have spent 为什么ought 后面加这个 to 为什么其他的不用加他玩游戏花费了大量他本该做作业的时间顺便把话费的四个句型给我说下吧

表示本该.,要用ought to ...所以,应该选最后一个.
might表示可能,可以
must表示必须（太绝对了,一般不选）
could表示可能

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