Rose spent her morning searching for the little girl.
1.spent为什么不加s?
2.search可以用原型不加ing吗?
人气：227 ℃ 时间：2020-02-03 12:29:04
解答
spent是spend的过去式,没有人称和数的变化,故不加s
spend one’s time (in) doing something是固定短语（in可加可不加）,故search必须用-ing形式
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