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：不定式表示将来；get rid of阻止；除掉。