A policeman___the thief and catch him (knocked at/knocked out)应该选什么?(今晚答出者加悬赏)The manager knocked 10%___the charge.A:off B:over C:out D:of 选什么?

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A policeman___the thief and catch him (knocked at/knocked out)
应该选什么?(今晚答出者加悬赏)
The manager knocked 10%___the charge.A:off B:over C:out D:of 选什么?

/knocked out
A off ,减去10%