The meeting tomorrow afternoon is about rid of pollution.
A. held, to get
B. to be held; getting
C. to hold; to get
D. being held; getting
网友回答
A. held, to get
(答案→)B. to be held; getting
C. to hold; to get
D. being held; getting
解析：不定式作定语表示将来和目的；介词后面跟动名词作宾语。