7, he said, "I will have finished this paper tomorrow".

→ He said he would have finished that paper by the next day.

8. "I will apply for my visa tomorrow".

→ She said (that) she would apply for her visa the next day.

9, we worked for a bank in KG".

→ he said that we have worked for a bank in KG.

10, she said, "Minh is leaving now."

→  She said that Minh was leaving then.

11. how is the weather today?"

→ She asked me how the weather was that day.

12. "how can you solve the problem, Lan?"

→ I wanted to know how I could solve the problem.

*Giải thích:

Câu tường thuật (Statements)

S + said + (that) + S + V(lùi thì)