单选题 Without air, ______ no wind or rain.
A. there would be B. there will be
C. there have been D. there is

【正确答案】 A

【答案解析】[解析] 谓语动词题。本句的意思是：如果没有空气，也就没有风和雨。虚拟语气题：根据题意判断，此句应为与现在事实相反的虚拟语气。