you make a promise,you should keep it.A．UnlessB．ThoughC．OnceD．Even if
题型：不详难度：来源：
you make a promise,you should keep it.| A．Unless | B．Though | C．Once | D．Even if |
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答案
| C |
解析
| 考查连词用法。句意为你一旦许下诺言，你就应该遵守。所以选Once 一旦。 |
举一反三
The reason ________ he explained was________ he was ill and unable to go to school.| A．why; that | B．why; because | C．which; because | D．which; that |
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He’s got himself into a dangerous situation ________ he is likely to lose control over the plane.
A. where B. which C. while D why |
The old man was telling a funny story, surrounded by many kids, _________ with fascination.| A．all of whom listened | B．all of whom listening | | C．all of them listened | D．all of them were listening |
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_____ you make a promise, you should keep it. | A．Though | B．Unless | C．Now that | D．Even if |
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_______these coins are of different shapes, sizes and colors, they all date back to a long, long time ago.| A．Since | B．Unless | C．Once | D．While |
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