天山 4-12

rabbitbugs

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 mild each per year.

1. providing them with high-energy feed, and milking them regularly, Holstein cows are producing
2. providing them with high-energy feed, and milked regularly, the Holstein cow produces
3. provided with high-energy feed, and milking them regularly, Holstein cows are producing
4. provided with high-energy feed, and milked regularly, the Holstein cow produces
5. provided with high-energy feed, and milked regularly, Holstein cows will produce

标准答案是E, 可我选A, 不知道错在哪里？

goodfishs

把provided with high-energy feed, and milked regularly 放在2个逗号间，不会产生歧异吗？他在语法上是不是也可以修饰farmer?

rabbitbugs

但是，可以不可以把providing them with high-energy feed, and milking them regularly当作takes care to keep them cool的伴随状语？

kenlily

现在分词表主动，过去分词表被动。

这里的主语是cows，所以要用被动。