作业帮1.I found Helen (singing) under the tree.为什么不用was singing?前面不是过去式吗?2.I'm afraid you (forgot) the date,didn't you?这里为什么要用过去时?3.Mr.black has lived in Beijing for (two and a half years).and 后面是a half,
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1.I found Helen (singing) under the tree.为什么不用was singing?前面不是过去式吗?2.I'm afraid you (forgot) the date,didn't you?这里为什么要用过去时?3.Mr.black has lived in Beijing for (two and a half years).and 后面是a half,
1.I found Helen (singing) under the tree.
为什么不用was singing?前面不是过去式吗?
2.I'm afraid you (forgot) the date,didn't you?
这里为什么要用过去时?
3.Mr.black has lived in Beijing for (two and a half years).
and 后面是a half,为什么还要用years?还有,可以说“two years and a half year”吗?
4.-Did you go to Sam's weekend party?
--No,I( wasn't invited).
Did 提问为什么用wasn't 回答?
1.I found Helen (singing) under the tree.为什么不用was singing?前面不是过去式吗?2.I'm afraid you (forgot) the date,didn't you?这里为什么要用过去时?3.Mr.black has lived in Beijing for (two and a half years).and 后面是a half,
1.一句话里不能有两个谓语动词,singing是状语,表示Helen目前的状态.
2.因为这句话的句意是“我恐怕你忘记了日期吧”在说话人话一出口的瞬间,对方便一定已经想起来了,所以“忘记”是过去的事情用过去式.
3.“two years and a half year”这个恐怕不行……我从来没见过……至于 这个用“years”的问题……两年半是单数还是复数啊?还是复数吧……
4.因为是表示过去没有被邀请,被动语态里只有was啊,所以只能用 wasn't invited来回答.
1.found已经是句子中的谓语.所以sing用非谓的形式(to sing或者singing).因为句子大意是"我发现helen在树下唱歌"而不是"我发现helen在树下去唱歌",这里的singing是helen的伴随状态,所以用singing.
2."我怕你忘记了日期吧".这句话一说一口,就证明对方已经忘记了."已经"发生在过去,所以用过去式.
3.只要超过一年都必须用复数.tw...
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1.found已经是句子中的谓语.所以sing用非谓的形式(to sing或者singing).因为句子大意是"我发现helen在树下唱歌"而不是"我发现helen在树下去唱歌",这里的singing是helen的伴随状态,所以用singing.
2."我怕你忘记了日期吧".这句话一说一口,就证明对方已经忘记了."已经"发生在过去,所以用过去式.
3.只要超过一年都必须用复数.two years and a half year这个表述没有见过噢.大概不可以.
4.其实最全面的回答是:No,I didn't.I wasn't invited.其实口语化一点就把I didn't删除了.
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