如果鞋子不合脚，你可以把它们退回商店。

If the shoes don't fit, you can ___take ___them ___back to the shop.

我需要在周五前把这些图书馆的书还回去。

I need to ___take these library books ___back by Friday.

她把有问题的吹风机退了回去，并获得了全额退款。

She ___took the faulty hairdryer ___back and got a full refund.