Please answer FAST...

Dear student
Substance undergoing addition of oxygen is said to be oxidised, the substance carrying out oxidation is known as oxidising agent.
Substance undergoing addition of hydrogen is said to be reduced, the substance carrying out reduction is known as reducing agent.
1) Oxidised : Na
    Reduced = $O_2$
    Oxidising agent: $O_2$
    Reducing agent= Na

2) Oxidised= $H_2$
    Reduced = CuO
    Oxidising agent=CuO
    Reducing agent= $H_2$
Regards