Mary came to China three years ago.[改为同义句] Mary has [ ] in China since three years ago.做出答案后要说明原因,
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![Mary came to China three years ago.[改为同义句] Mary has [ ] in China since three years ago.做出答案后要说明原因,](/uploads/image/z/5703242-50-2.jpg?t=Mary+came+to+China+three+years+ago.%5B%E6%94%B9%E4%B8%BA%E5%90%8C%E4%B9%89%E5%8F%A5%5D+Mary+has+%5B+%5D+in+China+since+three+years+ago.%E5%81%9A%E5%87%BA%E7%AD%94%E6%A1%88%E5%90%8E%E8%A6%81%E8%AF%B4%E6%98%8E%E5%8E%9F%E5%9B%A0%2C)
Mary came to China three years ago.[改为同义句] Mary has [ ] in China since three years ago.做出答案后要说明原因,
Mary came to China three years ago.[改为同义句] Mary has [ ] in China since three years ago.
做出答案后要说明原因,
Mary came to China three years ago.[改为同义句] Mary has [ ] in China since three years ago.做出答案后要说明原因,
been
come 是终止性动词,它的现在完成时肯定式不能与表示一段时间(FOR,SINCE 等短语)连用,故要改为持续性动词,COME 改为BE IN ,而BE 的过去分词是been
been
这不是改同义句,而是时态的改变
原句为一般过去时,改后的句子是现在完成时
Mary came to China three years ago. =
Mary has [been ] in China since three years ago.
have been in 表示:在某地待着。
祝学习进步,有不会的可以再问我。(*^__^*)那为什么用been?has/have 后面接be动词的过去分词形式,构成一般完成时。 have been ...
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Mary came to China three years ago. =
Mary has [been ] in China since three years ago.
have been in 表示:在某地待着。
祝学习进步,有不会的可以再问我。(*^__^*)
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2.Mary came to China three years ago. Mary has__in China since 4.同义句 1.isn't it 2.been 3.who walked 4.Why not