—The population of the world ____ still ____ now.
—So it is.
A. are; growing       B. will; grow        C. is; growing
C

試題分析：句意：現(xiàn)在世界的人口數(shù)量仍然在增長。句中The population作為主語時，謂語動詞必須用單數(shù)，同時句中有時間狀語now，所以用現(xiàn)在進行時態(tài)。故選C
點評：對于population一詞作為主語時，相應(yīng)的謂語動詞要用單數(shù)形式，同時對于The population的提問，不能用how much/many，必須用what。
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