1. It's the first time Huy has seen such that film.

2.The Internet has been used all over the world.

3.My friend is interested in going swimming.

4.I haven't travelled to HongKong for two years

5.He asked Lan who had phoned her the day before.

6.In spite of his poor health, he worked twelve hours a day.

7.If Huy weren't busy, He could come to your birthday party.

8.I wish I knew your address

9.I wish I could come to party

10.Ba asked his sister what she thinked about language learning.

11. A supermarket is going to be built near my house.

12.For centuries, the ao dai has been mentioned in their works by poets and writers.

13.Because Lan stayed up late watching TV, she was tired.

14.Although the traffic was very bad, we arrived on time.

15.My bother spends three hours surfing the Net every  night.

16. My father has worked in this factory for 5 years.

17.I wish I could visit my grandparents on the weekend.

18. An ambulance has been just sent to the school.

19.She said to me that she would go to Nha trang the next week.

20.All the students have been invited to join our english club.