active

他在那场运动中扮演了积极的角色。

He played an ___active role in the campaign.

他的父母都积极参与政治。

Both of his parents were politically ___active.

我一直在不同的组织中非常活跃。

I have always been very ___active in different organizations.

这座岛上有一座活火山，随时可能喷发。

The island is home to an ___active volcano, which could erupt at any moment.

登山者被警告远离这座活火山，因为它有突然喷发的危险。

Hikers were warned to stay away from the ___active volcano due to the risk of sudden eruptions.

科学家们正在密切监测这座活火山，寻找即将喷发的迹象。

Scientists are closely monitoring the ___active volcano for signs of an imminent eruption.