作业帮这一题怎么写has sam finished his homework today?这一题怎么写has sam finished his homework today?yes he ___it this morning,a,did b,has done c.was doing d.had done 请讲出理由谢谢 😞
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这一题怎么写has sam finished his homework today?这一题怎么写has sam finished his homework today?yes he ___it this morning,a,did b,has done c.was doing d.had done 请讲出理由谢谢 😞
这一题怎么写has sam finished his homework today?
这一题怎么写has sam finished his homework today?
yes he ___it this morning,
a,did b,has done c.was doing d.had done
请讲出理由谢谢 😞
这一题怎么写has sam finished his homework today?这一题怎么写has sam finished his homework today?yes he ___it this morning,a,did b,has done c.was doing d.had done 请讲出理由谢谢 😞
答案是A
因为说是这个早晨做的,所以用一般过去式.
C选项为过去进行时，句子里必须出现“过去的具体时间”，例如at nine o'clock this morning这种时间状语你这答语里只有个this morning，很明显只是一个过去时间，前面也没有since所以不能用完成时，这道题很多同学易选错认为问句里是完成时答语肯定也用完成时 只能用过去式....对不起 有人比你先你也很厉害😞抱歉😞...
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C选项为过去进行时，句子里必须出现“过去的具体时间”，例如at nine o'clock this morning这种时间状语
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a.did
如果是BY this morning就用过去完成时。