清解答Chicken soup 里面的一段话中的几个用法

清解答Chicken soup 里面的一段话中的几个用法
I thought to stop and help him but was not quite sure what to do.As the traffic light turned green,it seemed life was demanding that I move along.So I did.Back in the "anything I wanted was mine" environment of my hotel,I promptly forgot about the man on the street.
1.Back in the
2.it seemed life was demanding that I move 为什么要用move along?而不是moved along或者是went along?有什么特殊的用法吗?
3.anything I wanted was mine" environment of my