—Flight CA 581_____________. I must be o
题型:选择题
问题:
—Flight CA 581_____________. I must be off now. —Have a nice trip.
A.is being announced
B.has announced
C.was announcing
D.will be announced
—Flight CA 581_____________. I must be off now. —Have a nice trip.
A.is being announced
B.has announced
C.was announcing
D.will be announced