现在完成时的句子

1、How long have you been here in Sydney?

2、谁去过夏威夷?没人去过。

3、我知道你来看你的爸爸。

4、I’ve already been there twice、

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

6、His shoes are dirty.他的鞋子脏了。

7、你从他那里学的"滑水，不是吗?

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

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

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

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

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

13、他从那以后就在檀香山。

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

16、They are at home.他们在家里。

17、Has anybody water-skied before?

18、Have you ever traveled on a plane?

19、They haven’t finished yet.他们还没结束。

20、I’ve just finished reading the book、

21、He has been in Honolulu ever since、

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