【题目】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
【解析】A. look 样子；B. sign迹象；C. sight 景象；D. appearance外表；句意：在大街上挂衣服在城市中许多地方很常见。根据句意，故选C。