With drink and food the prisoner had to walk out of the cave where he was hiding.A. run

问题补充：

With drink and food , the prisoner had to walk out of the cave where he was hiding.

A. run out

B. run out of

C. running out

D. running out of

答案：

A. run out

(答案→)B. run out of

C. running out

D. running out of

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