—If we take a plane，we’ll of course have arrived in London by the next weekend.
—Don’t be too sure.We should the weather factor.What shall we do if it is foggy?
A. look for
B. allow for
C. prepare for
D. use for
网友回答
A. look for
B. allow for
C. prepare for
D. use for
解析：B
解析 考查动词短语辨析。look for寻找；allow for考虑到；prepare for为……作准备；use for用做。allow for符合语意。