TomBradley was mayor of Los Angeles from 1973 to1993, an era when the city had transformed from a collection of suburbanneighborhoods to the second-largest city in the United States.
A. an era when the city had transformed.
B. ！an era during whichthe city was transformed.
C. an era that transformed it.
D. during which era the city transformed.
E. during which the city was transformed.
这个是GWD上的一道题， 我以为不选A的原因是city had been transformed, 可是后来看了解析，说是when的问题，难道an era不可以用when修饰？
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发表于 2010-10-18 03:32:15
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