give up|gave up

他不得不中途退出了马拉松比赛。

He had to ___give ___up halfway through the marathon.

尽管困难重重，她拒绝放弃。

She refused to ___give ___up despite the many difficulties.

几个月后，我放弃了学习法语。

I ___gave ___up trying to learn French after a few months.