问题
选择题
____ by high mountains, the city is infamous for air pollution.
A．Surrounding
B．To be surrounded
C．Surrounded
D．Having surrounded
答案
答案：C
题目分析：考查非谓语动词。be surrounded by被……包围，在句中作状语，相当于The city is surrounded by high mountains。句意：被高山所包围，这座城市以空气污染而闻名。根据句意说明C正确。