问题
选择题
The practice of hanging clothes across the street is a common ______ in many parts of the city.
A．look
B．sign
C．sight
D．appearance
答案
C
look/appearance外表； sign标志、迹象； sight风景、视力。结合句意，“在城市的很多地方，衣服穿街晾晒已成一道风景。” 故选C项。