尼尔否认他打破了窗户,但我确信是他做的。
Neil ___denies that he broke the window, but I'm sure he did.
尼尔否认打破了窗户。
Neil ___denies breaking the window.
我们不能否认技术已经改变了我们的生活。
We cannot ___deny that technology has changed our lives.