I was standing behind a tall man.When the man looked , I recognized him at once.
A. up
B. down
C. forward
D. about
网友回答
A. up
B. down
C. forward
(答案→)D. about
解析:短语辨析。Look up查找;look down upon看不起;look forward to期待;look about四下观望;句意:我站在一个高个子男人的后面,当那个人四下观望的时候,我立刻就认出他了。故D正确。