她每月按时还款以避免额外的利息。

She makes her monthly ___repayment on time to avoid extra interest.

我每个月要偿还2000元的贷款。

My monthly loan ___repayment is 2000 yuan.

他们的善举无以回报，我们只能表示深深的感谢。

Their kindness is beyond ___repayment, we can only express our deepest gratitude.