1、I"ve been doing my homework.我一直在做作业。

2、Who has been to Hawaii? None of us has、

3、I’ve just finished reading the book、

4、我知道你来看你的爸爸。

5、I"ve known her for 30 years.我认识她已经30年了。

6、你从他那里学的"滑水，不是吗?

7、He has been in Honolulu ever since、

8、This is the first time I have been here.这是我第一次到这儿。

9、I’ve already been there twice、

10、Have you ever traveled on a plane?

11、They haven’t finished yet.他们还没结束。

12、His shoes are dirty.他的鞋子脏了。

13、You’ve learnt surfing from him, haven’t you?

14、谁去过夏威夷?没人去过。

15、How many times have you been to Singapore?你去过新加坡几次?

16、I know you’ve come to see your father、

17、My momhas never travelled by air.我妈妈旅游从来没有坐过飞机。

18、They are at home.他们在家里。

19、Has anybody water-skied before?

20、他从那以后就在檀香山。

21、How long have you been here in Sydney?

22、I have bought a new computer.我买了一台新电脑。