Question

If the weather had been better, we could have had a picnic. But it _____ all day.

A．rains

B．has rained

C．rained

D．is raining

Answer 1

C

试题分析：考查虚拟语气和时态。在虚拟语气中，but后面的句子应该使用陈述语序。本题根据. If the weather had been better, we could have had a picnic说明是与过去事实相反的虚拟语气，那么but后面的陈述句使用一般过去时。
考点;考查虚拟语气和试题
点评：要特别注意but后面使用陈述语气。要根据前面的虚拟语气来判断后面的时态。