规律运动对她的健康产生了积极影响。

Regular exercise has had a ___positive effect on her health.

美丽的风景对我的情绪产生了积极影响。

The beautiful scenery had a ___positive effect on my mood.

一位支持性的老师能对学生的自信心产生积极影响。

A supportive teacher can have a ___positive effect on a student's confidence.