我们在课堂上学习了威廉·莎士比亚的戏剧。

We studied the plays ___of William Shakespeare in class.

电话的发明永远改变了通讯方式。

The invention ___of the telephone changed communication forever.

我喜欢在海边听海浪的声音。

I love listening to the sound ___of the waves at the beach.