题目内容
Food supplies may ________ towards the end of the trip, so we can’t waste any food.
A. run out B. run up C. run in D. run away
A
本题考查固定短语。run out“用光、花光”,无被动语态;run up“竖起,升起”; run in意为“顺便探访”;run away意为“逃跑”。故答案为A。

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