Question

【题目】If you ________ the medicine yesterday, you ________ well now.
A.took, might be
B.had taken, might have been
C.had taken, might be
D.took, might have been

Answer 1

【答案】C
【解析】考查虚拟语气。本句条件句中时间状语是yesterday，这是一个过去时间，所以从句中使用“过去完成时”表示与过去相反，主句的时间状语是now，说明主句与现在事实相反，所以主句使用“情态动词+动词原形”。句意：如果昨天你服药了，现在你就会很好。故C正确。