他不得不卖掉他的车来偿还贷款。

He had to sell his car to ___repay the loan.

让我们制定一个还款计划，这样我就能偿还我的债务了。

Let's work out a payment plan so I can ___repay my debts.

我需要把上个月父母借给我的500美元还给他们。

I need to ___repay my parents the $500 they lent me last month.