Question 5:
8. say
9. say
10. say
11 said
12. told / speak
13. speak
Question 6:
1. He always short of money.
2. Mr Nam was the last witness to be called.
3. Until I tell you, you must stay or you may not leave.
4. When I arrived, Minh had gone home.
5. I miss working in the evenings.
6. Please don’t forget to post all the letters.
7. He has decided to learn how to drive.