Last summer holiday, I went back to my hometown, _______ the neighbours and the house _______ I used to be familiar with were gone.

A．only finding; which

B．only to find; that 

C．to find; whom

D．found; that

下列物质中，不能与氯化铜溶液发生置换反应的是（　　）

A．镁

B．锌

C．铁

D．银