她打电话来请我帮个忙。

She called to ask me a ___favour.

你能帮我个忙，把这个递给肖恩吗？

Could you do me a ___favour and pass this to Sean?

我不在的时候，你能帮我个忙浇一下花吗？

Could you do me a ___favour and water my plants while I'm away?