环保活动家发起了一场激烈的抗议，反对新建工业园区。

Environmental activists have ___mounted ___a spirited protest against the new industrial park.

反对党正在全国大选前发起一场声势浩大的竞选活动。

The opposition party is ___mounting ___a vigorous campaign ahead of the national elections.

几家科技初创公司正在对行业巨头发起严峻的挑战。

Several tech startups are ___mounting ___a serious challenge to the industry giants.