问题
选择题
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
答案：A
考查时态。根据前半句的时态可知是与过去事实相反的虚拟语气。But后面的句子使用陈述语气，故使用过去时。
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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：A
考查时态。根据前半句的时态可知是与过去事实相反的虚拟语气。But后面的句子使用陈述语气，故使用过去时。