【題目】Food supplies in the flood-stricken area _______. We must act immediately before there’s none left.

A.have run outB.have been run outC.are running outD.are being run out

【答案】C

【解析】

考查動(dòng)詞時(shí)態(tài)及語態(tài)。句意：在洪災(zāi)區(qū)供應(yīng)的食物快用完了，在用完之前我們必須立刻采取措施。are running out表示將要用完，run out不能用被動(dòng)形式。故排除B、D；選項(xiàng)A表示已經(jīng)用完，不符合語意，故選C。

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