食品包装中经常用到铝箔．铝能制成铝箔是因为铝（　　）

A．导电性强

B．延展性好

C．熔点高

D．密度小

－ I need something for cutting the paper.

－ Oh, you want a knife? OK, I’ll get ______ for you.

A．it

B．that

C．this

D．one