— Flight MU257 ______, I must be off now.— Have a nice trip.A．is being announced
题型：不详难度：来源：
— Flight MU257 ______, I must be off now.
— Have a nice trip.| A．is being announced | B．has announced | | C．was announcing | D．had been announced. |
|
答案
| A |
解析
| 本题考查时态。根据语境I must be off now 可知，MU257航班正在被播报，故用现在进行时的被动语态，故选A。 |
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