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next thing he heard was an insistent knocking on the door of his room.这里的knocking是动名词吗?可以说成the insistent knocking of the door 这种结构吗?这种形式的doing词使用有哪些注意点,谢谢老师!
...个句子,A total of 140 aftershocks (余震) have been recorded.这里的主语核心是total,还是aftershocks? 谓语用have对吗?还是应该用has?我在有道词典中查了一些例句,但没找到a total of短语作主语的情况,所以还希望您能帮助提供一些权威例...
看到了这样两句:Houses are a lot more expensive these days. 如今的房价贵多了。The children of the poor couldn’t go to school in those days. 那时穷人的孩子上不了学。上面两句中,these days 前没有用介词 in,但 those days 前就用了介词 in。这两个短...