【题目】We are ________ by doctors to eat more natural food and take plenty of physical exercises.
A. suggested B. warned of
C. informed D. advised
在线课程【答案】D
【解析】
试题分析：句意： 医生建议我们吃更多的天然食品及做更多的锻炼。A. suggested建议，后面不接不定式；B. warned of警告； C. informed通知；D. advised建议，advise sb to do 建议某人做某事，本句用的是这个结构的被动语态形式。故选D。