Definition: used to show who or what does something Level: B1
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.
