“If we fail to act now,” said Tom, “We’ll find ourselves

“If we fail to act now,” said Tom, “We’ll find ourselves ______ in action later on.”

paid back

paid for

paid up

paid off

答案及解析：本题考查动词词组辨析。A选项，句意： “如果我们不能现在采取行动”，汤姆说，“我们会发现自己在以后的行动中得到回报”。 pay back偿还；报复；报答；偿付。综上，A选项正确。B选项，pay for赔偿；为…付钱；因…受罚；替某人付款，故排除。C选项，pay up全部还清，付清，故排除。D选项，pay off付清；（付清工资后）解雇，故排除。故正确答案为 A项。