他的呼喊声在山谷中回荡。

His shout kept ___echoing in the valley.

她只是重复老师说的话，并没有自己的观点。

She was just ___echoing what the teacher said without adding her own thoughts.

她的演讲风格让人想起马丁·路德·金的经典演说。

Her speaking style is ___echoing Martin Luther King's famous speeches.