题目

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 解析: A  If the weather had been better, we could have had a picnic.此句是对过去事情的假设，但事实上下了一天雨，根据句意，最后一句应用一般过去时，表示对过去事实的陈述。（2006•南平）如图是一辆汽车车牌在水中的倒影，则该车的牌照号码是（ ）A．W17639B．W17936C．M17639D．M17936