For the farmer who takes care to keep them cool, providing them with high-energy feed, and milking them regularly, Holstein cows are producing an average of 2,275 gallons of milk each per year.
A.providing them with high-energy feed, and milking them regularly, Holstein cows are producing
B.providing them with high-energy feed, and milked regularly, the Holstein cow produces
C.provided with high-energy feed, and milking them regularly, Holstein cows are producing
D.provided with high-energy feed, and milked regularly, the Holstein cow produces
E.provided with high-energy feed, and milked regularly, Holstein cows will produce
我和大家选的不一样，我选的是A，我认为可以修饰前面的farmers的。而有两段逗号在主句前面让我觉得很奇怪。
欢迎大家指点 | 
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发表于 2011-9-26 16:11:53
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