— Flight MU257 _____. I must be off now.
题型:选择题
问题:
— 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 |