现在完成时句子

I have read a book these days.这几天我一直在看一本书。

I’ve just finished reading the book. 我刚读完书。

Tom has skated for five hours.TOM已经滑冰五个小时了。

She has taught in the school for ten years.她在这所学校教书已经

Have you found your pen yet?你已找到你的钢笔了吗？

Jill has bought a new computer.吉尔买了一台新电脑。

I’ve been here for two weeks already、 我已经在这里呆了两周了。

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

He has been in Honolulu ever since、 他从那以后就在檀香山。

After you have finished the questionnaire, you may decide if your friend is doing very well in protecting the environment、 你完成调查问卷后，你可以决定你的朋友是否在保护环境方面做得很好。

I have heard nothing from him up to now.到目前为止我没有他的任何消息。