12. They said that they lived on the big farm.
`\text{Câu tường thuật thì HTĐ:}`
Câu trực tiếp: S + said/asked/told/... "S + Vinf/Vs/es + O."
Câu gián tiếp: S + said/asked/told + (that) + S + Ved/V2 + O.
13. Mrs White said her son was having a shower.
`\text{Câu tường thuật thì HTTD:}`
Câu trực tiếp: S + said/asked/told/... "S + am/is/are + Ving + O."
Câu gián tiếp: S + said/asked/told + (that) + S + was/were + Ving + O.
14. The teacher said to Tom that he must do it by himshelf./ The teacher said to Tom that he had to do it by himshelf.
`\text{Câu tường thuật vs must:}`
*must ko đổi hoặc chuyển sang had to
15. He said to Mai that she ought to wash it in warm water.
`\text{Câu tường thuật vs ought to:}`
*ought to ko cần đổi.
*You chuyển sang she
16. Lan said to him he could use her computer.
`\text{Câu tường thuật thì HTĐ vs can:}`
Câu trực tiếp: S + said/asked/told/... "S + can + Vinf + O."
Câu gián tiếp: S + said/asked/told + (that) + S + could + Vinf + O.