我在九十年代的大部分时间都在国外旅行和工作，这是一段非常棒的经历。

I spent ___the ___'90s traveling and working abroad, which was an amazing experience.

垃圾摇滚在九十年代成为一个主要的文化现象。

Grunge rock became a major cultural phenomenon in ___the ___nineties.

在九十年代，互联网接入开始在大众中普及。

Internet access became widespread for the general public during ___the ___nineties.