她正在补袜子上的破洞。

She is ___mending the holes in her socks.

经过几个月的治疗，他的健康逐渐好转。

After months of treatment, his health is starting to ___mend.

他受伤的膝盖在手术后正在慢慢恢复。

His injured knee is slowly ___mending after the surgery.