他轻松地骑上了自行车。

He easily ___mounted the bicycle.

她把新买的画框挂在了客厅的墙上。

She ___mounted the new picture frame on the living room wall.

她熟练地骑上了马，准备开始今天的训练。

She skillfully ___mounted the horse and got ready for today's training.

学校组织了一场慈善义卖活动。

The school ___organized a charity sale event.