After that, the airhostess continued to demonstrate how to (inflate) the life-jacket in an emergency.
A.blow up
B.take up
C.break up
D.make up
正确答案是A
After that, the airhostess continued to demonstrate how to (inflate) the life-jacket in an emergency.
A.blow up
B.take up
C.break up
D.make up
正确答案是A