现在完成时的句子

1、I have been in the army for more than 5 years.我在部队已经呆了五年多了.
2、Has anybody water-skied before?有人之前滑过水吗?
3、I’ve been here for two weeks already.我已经在这里呆了两周了。
4、She hasn"t left home for a year.她离开家还不到一年.
5、He has done a lot of work in the past two years.在过去两年中他做了许多工作
.
6、I’ve been surfing every day.我每天都冲浪。
7、I have already won first prize in the city surfing competition.我已经在城市的冲浪比赛中获得了第一名。
8、Have you ever traveled on a plane?你坐飞机旅行过吗?