标题: 急需要帮助，看看词语法 [打印本页] 作者: Spencer125 时间: 2013-9-2 22:01 标题: 急需要帮助，看看词语法 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
答案是E，为何不是D。现在时代为何不对？？？作者: 摇曳的叶子 时间: 2013-9-2 22:14
them
the Holstein cow 作者: Spencer125 时间: 2013-9-2 22:23
