He is wet to the skin. He in the rain.A. must have caughtB. must have been caughtC. must

问题补充：

He is wet to the skin. He in the rain.

A. must have caught

B. must have been caught

C. must catch

D. must be caught

答案：

A. must have caught

(答案→)B. must have been caught

C. must catch

D. must be caught

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