What similar project have you completed in the past?

你以前有没有做过相似的项目？

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C Have been first discovered is the wrong tense, since the discovery is a discrete event completed in the past.

已被首次发现是错误的紧张，因为发现是一个不连续的事件在过去完成。

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In the past, if you loaded an image into the player, you couldn't stop the process until it completed.

在过去，如果将一个图像装载进播放器，那么在完成处理之前无法停止。

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But few have been completed in the past 15 years and many in that queue have been put on hold or withdrawn, for two reasons.

ECONOMIST: A survey of The future of energy

In the past three years, facial transplants have been completed in France and China, but these cases have raised medical and ethical questions.

CNN: Surgery transplanted most of patient's face

The phaseout won't be completed until 2006 or so, but for the second time in the past decade the once-famous marque will disappear, possibly this time forever.

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