_________(57)A.on B.aboveC.over D.against

I was_____ my _____to school when I saw him.A. on, timeB. in, wayC. on, way

A concert will be held here_____ 4 pm _____Tuesday.A. on... atB. in...inC. at... on

I was_____ my _____to school when I saw the accident.A.on,wayB.in,wayC.on,time

Tom attended the meeting ______ his company.A、on behalfB、on behalf ofC、on the behalfD、on

__________[A] as [B] for [C] under [D] against

Beloved is set______.A.on a slave shipB.on a plan