_________ fantastic time they had playing hide-and-seek in the park!

下列各组句子中加点字的意义和用法完全相同的一组是（ ）

She devoted herself________to her research and it earned her a good reputation in her field.

How do the shops make money if they sell at such low prices?-Manufacturers, it seems, are willing to bring down prices _______ big volume purchases．[ ]

It is a mainly dry country with only a few coastal areas that have ____ rainfall to support a large population．