you needn'd buy tickets because they are free.=you —— —— —— buy tickets because
you needn'd buy tickets because they are free.=you —— —— —— buy tickets because they are free.
人气：141 ℃ 时间：2020-05-10 03:28:29
解答
don't need to
need+ do= need to do
前面的need是情态动词,后面的need是实意动词
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