他主动提出解决方案，显示出了很强的主动性。

He demonstrated strong ___initiative by proposing solutions without being prompted.

学校推出了新的环保倡议，鼓励学生减少使用塑料制品。

The school introduced a new environmental ___initiative to encourage students to reduce plastic use.

她总是能抢占先机，在别人想到之前就采取行动。

She always takes the ___initiative to act before others even think of it.