Question

The doctors () their patients very carefully in the hospital

A.work for B.work up C.work at D.work out

Answer 1

work for na.强调工作，为(人)工作；为…尽力；参加。
例句：If you work hard and benefit the company you work for, you deserve to be rewarded for that.
你工作很努力，为公司做出了贡献，你应该得到一些奖励。
work up na.使兴奋；煽动；刻苦完成；展开(故事的情节).
v.逐渐完成;激发.
work at na.从事；在…方面用功.致力于；在某处工作；钻研.
work out v.作出；拟定；制定；计划一下.
The doctors work for their patients very carefully in the hospital.
在医院，医生为病人工作非常仔细。

Answer 2

A work for

为。。。效力，为。。。工作