1、May I have you attention,please此句中用you还是your.2、It sounds l

1、May I have you attention,please此句中用you还是your.
应该是：May I have your attention,please.your 是形容词性物主代词,后面接名词.have在这里不能带双宾语,所以不说you.
2、It sounds like you enjoyed it.sound用一般现在时,enjoy用过去时,为什么
这个句子的上下文场景可能是这样的：A:I met many old friends there.We really had a great time.B:It sounds like you enjoyed it.这里sounds是指“听到对方【现在】对过去事情形容的陈述”,即：现在听起来你那时玩得很开心.
3、A:We have to attend a boring meeting tomorrow.B:Don‘t tell me that.I wanted to relax and go shopping.为什么wanted用过去时.
这里用“过去式”是因为,B这个人“早就有计划了,要去做两件事情——1.放松；2.购物.”,所以这里可以理解为：别跟我说那些啦,我早就想放松放松,去购购物了.