12. Vietnam is a rice-exporting country 

13. I advise her what to do this weekend

14. I ask Nhi whether Phong Nha Cave in Southern Vietnam

15. What is hard to believe in it , he says.

1. It is for 5 minutes important to wait 

2. We are looking forward to seeing you next week

3. Mrs.Ngan is always forgetting her umberlla at home

4. Would you mind if I helped her Math homework with her ?

5. Do you mind moving your bike ?

6. Mrs.Huong said him had to pay then

7. The girls playing chess are Lan and Nga

8. The old lamp made in China is 5 dollars

9. He was taking a shower at 8 o'clock 

10. The crowd was cheering when Nam won the race

11. We were watching TV while our father was reading a newspaper

12. Viet Nam is a rice-exporting country. 

13. I advised her what to do this weekend.

14. I asked Nhi wether Phong Nha Caves in southern Viet Nam.

15. He says it is hard to believe what in.