问题
选择题
They took a hell of a risk and suffered a great deal but it______.
A．paid back
B．paid up
C．paid off
D．paid down
答案
C
句意：他们冒了很大的风险,遭了不少罪, 但事情成功了。paid off用作不及物动词短语，意思为“得到好结果；取得成功”。 pay back偿还；pay up全部付清；pay down用现金支付。