这位医生多年来一直倡导健康饮食。

The doctor has been ___advocating healthy eating for years.

这位教师代表全体学生在会议上倡导减少作业量。

The teacher is ___advocating for less homework on behalf of all students at the meeting.

这位医生大力提倡健康饮食来预防疾病。

The doctor is ___advocating a healthy diet to prevent diseases.