他轻松地跨上自行车开始骑行。

He easily ___mounts his bicycle and starts riding.

随着夏天的到来，气温逐渐上升。

As summer approaches, the temperature ___rises steadily.

我们将在下个月举办一场慈善晚宴。

We will ___host a charity gala next month.

她把画框挂在客厅的墙上。

She ___mounts the picture frame on the living room wall.