repay

他不得不卖掉他的车来偿还贷款。

He had to sell his car to ___repay the loan.

我该怎么做才能回报你的好意？

What can I do to ___repay you for your kindness?

我们可以做个交易，这样我就能偿还我的债务。

We could make a deal, so that I could ___repay my debts.