1. Ann has been playing tennis for

1. Ann has been playing tennis for two hours. (Ann is playing tennis now. She began to play tennis two hours ago and she is still playing.)
2. I have been waiting for my girlfriend since 6 o'clock.
3. He has been smoking for ten years.
4. Nancy has been skiing since she was 8 y.o.
5. We have been living here for seven years.
6. He has been watching TV all evening.
7. We have been meeting every Friday this year.

結果 (中文) 1:

1.安人网球有两个小时了。（安现在打网球。她开始打网球两小时前和她仍玩）。2.我一直等待我的女朋友以来 6 上午。3.他已经抽了十年了。4.南希已经被滑雪，因为她是 8 岁5.我们在这里住了七年了。6.他整个晚上一直在看电视。7.我们一直在开会今年每周五。

結果 (中文) 2:

1.安已经打网球了两个小时。（安现在打网球。她开始打网球的两小时前，她还在打。）
2。因为6点钟我一直在等待我的女朋友。
3。他一直在抽烟十年。
4。南希一直滑雪，因为她是8哟
5。我们一直在这里生活了七年。
6。他一直都晚上看电视。
7。我们今年已经达到每星期五。