题目内容
As the world’s population _____ becoming ______, we have to do something to change the situation.
A. is, bigger and bigger B. are, bigger and bigger
C. are, more and more D. is, more and more
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题目内容
As the world’s population _____ becoming ______, we have to do something to change the situation.
A. is, bigger and bigger B. are, bigger and bigger
C. are, more and more D. is, more and more