1.He has turned off the light.他已把灯关了.
2.Have you found your pen yet?你已找到你的钢笔了吗?
3.He has lived here since 1978.自从1978年以来,他一直住在这儿.
4.I have been in the army for more than 5 years.我在部队已经呆了五年多了.
5.I have heard nothing from him up to now.到目前为止我没有他的任何消息.
6.He has been in the League for three years.
= It is three years since he joined the League.他入团已三年了.
7.The train has arrived.火车到了.
8.Have you joined the computer group?你加入电脑小组了吗?
9.Jill has bought a new computer.吉尔买了一台新电脑.
10.I have just turned off the light.我刚刚把灯关上.
11.She has lost her bike.她把自行车丢了.
12.We have had much snow this winter.今年冬天多雪.
13.She has taught in the school for ten years.她在这所学校教书已经10年了.
14.I haven't eaten anything since breakfast.我从早饭起就一直没有吃东西.
15.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.
16.I have learned about two hundred English words this morning.本月我学了大约200个英语单词.
17.I have been to the Great Wall twice.我曾经去过长城两次.
18.She hasn't left home for a year.她离开家还不到一年.
19.I haven't seen Jamie for two months.我两个月没见杰米了.
20.The old man hasn't returned to his hometown for about fifty years.这位老人约有50年没有回家乡了.