此題應選C。這是一個省略句，若補充完整應為：　　

In some western countries，the rich are becoming richer，and the poor are becoming poorer. 在有些西方國家，富人變得更富，而窮人則變得更窮。　　

前后兩句謂語相同，后句承前省略。類似的有：　　

1. I am a teacher and my sister a nurse. 我是老師我姐姐是護士。　　

(...my sister a nurse=...my sister is a nurse)　　

2. John won the first race and Mick the second. 約翰贏了第一場比賽，米克贏了第二場比賽。　　

(...and Mick the second = ...and Mick won the second race)　　

3. In the accident the son was wounded，but the mother killed. 在事故中，兒子受傷，母親喪命。(...but the mother killed=...but the mother was killed)　　

有時若后句的主語和賓語等與前句相同，則可一起省去：　　

4. He did it and quite successfully too at the beginning. 他這樣做了，而且一開始就很成功。(=He did it and he did it quite successfully too at the beginning. )

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