Have you ever stopped _____ how our lie _____ if the world ran out of ol?
A.to think, would changeB.thinking, would changeC.to think, will changeD.thinking, should change在线课程A
考查虚拟语气。Stop to do停下来做；if引导的与现在事实相反的虚拟语气，故主句用would + v原形。句意：你曾经停下来思考过，如果世界用完了汽油，我们的生活将有什么变化？