A. | is being announced | B. | has announced | ||
C. | was announcing | D. | had been announced |
分析 ---航班MU257的登机通知正在被广播,我现在必须走了.
---祝你旅途愉快.
解答 答案A.根据I must be off now可以看出登机通知正在被广播,因此用现在进行时态的被动语态,所以答案是A is being announced.其他选项的时态不对.B是选择完成时;C过去进行时;D过去完成时的被动语态.
点评 考查现在进行时态的被动语态.
off做副词 的用法.
1.(离)开,(走)开,(隔)开 They went off together and left me sitting there.他们一同离开了,留下我独自坐在那里.
2.(时间、空间上)离,距 The town is five miles off.小城离这儿五英里远.
3.切断,关掉,停止;取消;不在工作,休息 He turned off the light before going out.他出门前把灯关掉.
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