$25.$ The tourist asked the guide if he/ she could show her/ him the way to the nearest post office.

- Câu hỏi tường thuật: S + asked + O + if/ whether + S + V...

$26.$ Ms. Hoang told Lan not to sit in his/ her bedroom.

- Câu tường thuật yêu cầu/ mệnh lệnh: S + told + O + (not) + to V.

$27.$ Mary asked John if he could carry her suitcase.

- Câu hỏi tường thuật: S + asked + O + if/ whether + S + V...

$28.$ Tom asked me if I can help him to solve that math problem.

- Câu hỏi tường thuật: S + asked + O + if/ whether + S + V...

$\text{@su}$

`25`, The tourist asked the guide if he could show him the way to the nearest post office.

`26`, Ms. Hoang said to Lan not to sit in her bedroom.

`27`, Mary said to John if he could carry her suitcase.

`28`, Tom said to me if I could help him solve that math problem.

Bonus: Câu tường thuật:

- S + say(s)/said/tell/told/... + (that) + S + V (lùi thì)

- S + say(s)/said/tell/told/... + to V / not to V

$\text{#BTS}$