1. The ADs on TV usually invite celebrities to promote products.
2. The cost will reach 5,000 yuan according to the estimate.
3. I guess the total will be more than 5,000.
4. The Dragon Boat Festival is a traditional Chinese festival.
5. We can't identify that wealth equals to happiness.
(这里在句首补足了一个主语 we)
6. He is advertising for his coming concert.
7. The government is investigating smoking.
8. The action for banning illegal owning of guns should be taken.
（这里用了一个被动句子,这是翻译中常见的一种小技巧）
9. Jane's old cloth made her seemed inferior when it was compared with the fabulous dressing of other guests.
（翻译技巧同上）
10. I don't think I am inferior to anyone else.
（think的否定应该在前面）