下列物质的用途与化学性质相关的是[ ]

A.用铜制电线

B.用石墨制铅笔芯

C.用活性炭净化水

D.用盐酸除去金属表面的锈

My father enjoys __________ newspapers __________ breakfast.

A．watching; for

B．seeing; for

C．to read; at

D．reading; at