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let在句子中能不能加s?如:是Theteacherletshimstandfortwominutes.还是Theteacherlethimstandfortwominutes.

题目详情
let在句子中能不能加s?
如:是The teacher lets him stand for two minutes.还是The teacher let him stand for two minutes.
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答案和解析
此句中let是情态动词,情态动词没有人称的变化,所以此句中let后面不能加s,类似的词还有must, need.