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2013-08-22
展开全部
题目:Since the restoration work started, the university____to preserve as many old trees as possible and limit the height of new buildings.A is careful B had been careful C has been careful D was caful Explaination:首先拿到题目先大概掌握句子的意思,since的用法主要有两点:一是表示“自从……以来”,二是表示“既然”之意。在这里很明显since表示的是第一种意思,既要用完成时,所以可以排除A和D。接下来从B和C当中选,你看and后面的那个单词limit,没有用过去式所以前面横线上不用表示过去式。两者并列答案选C。这句话也可以这样说:The university____to preserve as many old trees as possible and limit the height of new buildings since the restoration work started.这样的话直接套公式,我举个例子:I haven't seen him for a long time since he left Shanghai.谢谢采纳!
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2013-08-22
展开全部
你要哪题啊?看不清嘛~~
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