◎ 题干
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
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“If the weather had been better, we could have had a picnic. But it _____all day. [ ]A. rained B. rains C. has rainedD. is raining …”主要考查了你对  【一般过去时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。