摘要：-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
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— 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.
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— Flight MU257 _____. I must be off now.
— Have a nice trip.
— Have a nice trip.
[ ]
A. is being announced
B. has announced
C. was announcing
D. had been announced
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B. has announced
C. was announcing
D. had been announced
— 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.
查看习题详情和答案>>--- 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
— 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. |