1. Phong asked Peter if he enjoyed reading 

→ Cấu trúc: S+ asked/wondered+ if/whether + S +V; đổi enjoy→enjoyed

2. Hoa asked Lan if she liked sports

→ Cấu trúc: S+ asked/wondered+ if/whether + S +V; đổi like → liked

3. She asked Nam if his sister and brother went to the same school

→ Cấu trúc: S+ asked/wondered+ if/whether + S +V; đổi go → went

4. She asked her mom if there were some oranges in the fridge

→ Cấu trúc: S+ asked/wondered+ if/whether + S +V; đổi are → were

5. He asked his friend if it would rain the following morning

→ Cấu trúc: S+ asked/wondered+ if/whether + S +V; đổi tomorrow morning → following morning

6. His friend asked him how he went to the airport

→ Cấu trúc: S+ asked/wondered+ if/whether + S +V; đổi go → went

7. Lan asked Mai how much that dress costed

→ Cấu trúc: S+ asked/wondered+ if/whether + S +V; đổi cost → costed, this → that

8. Ba asked tam how often he washed his clothes

→ Cấu trúc: S+ asked/wondered+ if/whether + S +V; đổi wash → washed

9. Phong asked Thu when her father would leave Vietnam for America

→ Cấu trúc: S+ asked/wondered+ if/whether + S +V; đổi will → would

10. The librarian asked my teacher how many books the students needed

→ Cấu trúc: S+ asked/wondered+ if/whether + S +V; đổi need → needed