$1.$ He said he didn't know what had happened.

$2.$ She said she had gone to the doctor the previous day.

$3.$ He said he had a toothache.

$4.$ She said she would write him a prescription.

$5.$ They said they were going to the drug store.

$6.$ He said he liked that song.

$7.$ She said he went to the supermarket every day.

$8.$ He said he had received the envelope.

$9.$ They said they had visited CR.

$10.$ She said she felt very sick.

$11.$ She said she didn't speak Italian.

$12.$ They said we were flying to California.

$13.$ He said he was cutting off the main valve.

$14.$ Nam said his uncle often planted the vegetables in the afternoon.

$15.$ She said her uncle would not plant the vegetables the following day afternoon.

$16.$ Nga said Mr. and Mrs. Pike had just read these newspapers

$17.$ She said she often listened to music at night.

$18.$ Lan's mother said her daughter usually brushed her teeth before meals.

$19.$ They said they had to do the assignment then.

$20.$ Lan says her sister seldom rides a bike to school.

*Cấu trúc:

- Câu tường thuật trần thuật: S + said + (that) + S + V...

- Khi chuyển sang câu tường thuật ta cần thay đổi thì, trạng từ chỉ nơi chốn và chủ ngữ:

  + Thì hiện tại tiếp diễn → Thì quá khứ tiếp diễn.

  + now → then.

  + my → her/ his.

  + have to → had to.

  + Thì hiện tại đơn → Thì quá khứ đơn.

  + ...

$@vanw$