题目

 My oil _______. I must go to the gas station before there is none left. A. has run out                                           B. is running out C. has been run out                                   D. is being run out 答案：【解析】选B。考查时态和语态。句意：我的汽油快用光了。我必须在汽油耗完之前去加油站。run out 是不及物动词短语，通常表示被动的含义，因此不用被动语态。根据句意，汽油还没用完，所以选B。 独具【易错解读】本题易受汉语意思影响，误选D。但run out是不及物动词短语，不能用于被动语态。表________ the policemen free this afternoon? [　　] A．IsB．Are C．DoesD．Do