The plane will take off _________ three hours. I must get to the airport right now.
A. in B. for C. on D. at
The plane will take off _________ three hours. I must get to the airport right now.
A. in B. for C. on D. at
A
【解析】介词的用法。过多久之后做某事要用介词in。句意为再过三个小时飞机就要起飞了,我必须马上去机场。故选择A。