题目内容
2.Food supplies in the flood-stricken area______.We must act immediately before there's none left.( )A. | have run out | B. | are running out | ||
C. | have been run out | D. | are being run out |
分析 洪水灾区的食品快用完了,我们必须在他们用完之前立刻采取措施.
解答 答案:B.
根据后面一句"我们在他们完全用完之前行动"可知食物还没有用完,A和C是完成时态表示已经用完,可排除.B项是一般将来时态,即用现在进行时表示将来时,在这里表示快要用完.run out用完,用尽,是不及物动词,不能用被动语态,排除D项;故选B.
点评 对于时态的题要分析句子的意思,结合具体的语境来判断相应的时态,尤其要注意一些特殊时态表达其他时态的情况.
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