新概念二册上面的,

新概念二册上面的,
The young man waved to the writer.He _____ him.
A.saluted B.greeted C.signalled to D.nodded
He asked for a lift.He was a ______.
A.tramp B.hitch hiker C.passenger D.foreigner
(hitch hiker )
You can't fail to obeyp it.You can't _____ to do this.
A.refuse B.deny C.resist D.withdraw
She often appears as a young girl.She ________ on the stage as a young girl.
A.is presented B.pints C.shows D.seems