单项选择题
The well-known Garub Site, unearthed in 1997, shows that man had made living there as early as 5,000 years ago.（）
A．human had lived B．humans had lived C．human being lived D．human beings lived
A．have quit as... was founding B．having quit as... had founded C．being quit as... founded D．having quit as... founded
A．of wearing... incident B．wearing... event C．of wearing... event D．to be wearing... incident