Question

If you ________ the doctor’s instructions, you ________ better now．

1. A.
   followed; would be
2. B.
   followed; would have been
3. C.
   had followed; would be
4. D.
   had followed; would have been

Answer 1

C
根据句意，这应该是对事实的假设，即虚拟语气。此句为比较复杂的虚拟语气，if从句是对已经发生过的事实进行虚拟，而主句是对目前情况的虚拟。