our plane is --- in a few minutes please seated and keep your safe belt fasteneda\ turning offb\ putting offc\ taking offd\ getting off说理由!

our plane is --- in a few minutes please seated and keep your safe belt fastened
a\ turning off
b\ putting off
c\ taking off
d\ getting off
说理由!

应该选 C taking off  意思是：起飞
我们的飞机一会儿就要起飞了,请坐好并系紧安全带.