one Grammer

qianjun

According to inteerstudy, a nonprofit organization that studies health maintenance organizations, they estimate that, in comparison to last year, when only 36 percent of the nation's 607 HWO's was profitable, this year 73 percent will be.
a.they estimate that, in comparison to last year, when only 36 percent of the nation's 607 HWO's was profitable, this year 73 percent will be.
c. only 36 percent of the nation's 607 HWO's werer profitable last year, it estimates that this year 73 percent will be.
WHy is c? BaiYong's grammer.
Thanks.

Louisa_xy

a 中的they不能指代 a nonprofit organization，必须用单数it

lucylu

我觉的c答案也不对。
only 36 percent of the nation's 607 HWO's were profitable last year, it estimates that this year 73 percent will be.
两句中缺少连词吧？
[em08]