_____there are a large number of chemical factories,the air is likely to be polluted
题目
_____there are a large number of chemical factories,the air is likely to be polluted
A that
B where
C once
D as
答案
应选B,因为本句的意思是“哪里有很大数量的化工厂,那里的空气可能就被污染”所以根据句意,应选B
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