“测量不规则金属密度”实验中共有器材：天平和砝码、细线、直尺、金属块、水杯。上述器材中多余的是_______，还必须补充的器材是________，在测得金属质量和体积后，应用公式ρ=__________  计算该金属密度。

When questioned by the police, the drunken driver denied drinking, but the terrible smell on him         .

A．frightened him away

B．kept him away

C．gave him away

D．took him away