in fifth avenue还是in the fifth avenue

第一个对。in/on Fifth Avenue在第五大道（大街）

If May's parents had entertained the Carfrys in Fifth Avenue they would have offered them something more substantial than a parson and a schoolmaster. 假如让梅的父母在第五大街款待卡弗莱一家，他们会引荐比牧师和家庭教师更有分量的人物。

She surprised him by turning, in full Fifth Avenue, and flinging her arms about his neck. 令他惊讶的是，在拥挤的第五大街上，梅转过身来，伸出双臂搂住了他的脖子。

Forty scions of some of the world's richest families were gathered in the bank's headquarters on Fifth Avenue for a two-and-a-half day programme designed to help them understand their roles in sustaining their family legacies. 全球一些最富有家庭的40名子孙，聚集在这家银行位于纽约第五大道的总部，接受为期两天半的课程。课程目的是帮助他们了解自己在延续家族遗产方面的作用。

Bergdorf Goodman has opened a men's store on Fifth Avenue. 波道夫·古德曼在第五大道上开了一家男装店。