If the weather had been better, we could have had a picnic. But it ____ all day.
题型：不详难度：来源：
If the weather had been better, we could have had a picnic. But it ____ all day.| A．rained | B．rains | C．has rained | D．is raining |
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答案
| A |
解析
| 从题干前部分句子的谓语动词结构（虚拟语气）可以看出是指过去某个时间已经下了整天的雨。所以应该用一般过去时态。该题解题关键要从题干前部分入手。if非真实条件句用的过去完成时，主句用would have done，我们可以看出这是与过去事实相反的虚拟语气。 |
举一反三
If their marketing plans succeed, they ____ their sales by 20 percent.| A．will increase | B．have been increasing | C．have increased | D．would be increasing |
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— ________you read the story?
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