The old man sat on the sofa and read a book.
这个句子我有两个问题,old man是第三人称,怎么read不加s.
还有,老人坐在沙发上看书这个句子,怎么用上过去式sat?
请重点概括一下.
人气：281 ℃ 时间：2019-10-19 08:26:12
解答
read 的过去时 还是read……写起来是一样的,第二个read 不是原型,是过去式
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