？？NN请帮我看看这2道语法

前一答案是我选的，后一个是标准答案

Q12:

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.

 

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

   Answer: A   E

Q41:

Antarctica receives more solar radiation than does any other place on Earth, yet the temperatures are so cold and the ice cap is reflective, so that little polar ice melts during the summer; otherwise, the water levels of the oceans would rise 250 feet and engulf most of the world’s great cities.

1. is reflective, so that little polar ice melts during the summer; otherwise,

2. is so reflective that little of the polar ice melts during the summer; were it to do so,

3. so reflective that little polar ice melts during the summer, or else

4. reflective, so that little of the polar ice melts during the summer, or

5. reflects so that little of the polar ice melts during the summer; if it did

   Answer: D  B

AB先排除了，providing them with high-energy feed, and milking them regularly,  与前面takes care 不对称。

D选项是 the Holstein cow错

C选项provided with high-energy feed, and milking them regularly,不对称

就剩下E了 但是E的takes和providing也是有问题的，但是不如前民几个选项的问题大，所以选这个。

are so cold 与is so reflective that 对称, that's right。

For the farmer who takes care to keep them cool, (to keep them) provided with high-energy feed, and (to keep them) milked regularly, Holstein cows will produce

A不平行，选E