—Father makes me take much exercise every day.

—OK. _______exercise you do, ______ you are.

A．The harder; the better

B．The higher; the great

C．The more; the healthier

D．The sooner; the happier

优质麦芽的颜色应是（）

A.绿色

B.黑色

C.黄色

D.红色