Question

You are wet through. You ___________ in the rain.

1. A.
   must come
2. B.
   must have forgotten
3. C.
   may catch
4. D.
   must have got caught

Answer 1

D
考查must表推测，对过去事情的推测应用：must have done结构，句意：你浑身都湿了，你一定遭遇大雨了。be/get caught in 突然遭遇。所以选D。