Friends of the Earth help keep the environment clean.对“ keep the environment clean”提问
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Friends of the Earth help keep the environment clean.对“ keep the environment clean”提问
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What do friends of the Earch help?Friends of the Earth 是主语:地球的朋友;谓语动词是 help "keep the environment clean"是宾语,对宾语的提问谓语动词是行为动词时,必须在句首加上助动词Do、Does(三单)、Did...
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我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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