He asked Peter if he lived in the country

2.2.They inquired if I had seen Charles the previous morning

3.3.She wanted to know if John would get there on time

4.4.The policeman wondered if I didn't know the traffic regulations

5.5.The commander wanted to know if their soldiers had enough weapons

∘∘ Kiến thức câu gián tiếp :

++ S + asked/ wanted to know/ wondered + if/whether + S + V ( đổi ngôi/lùi thì )

++ Hiện tại đơn →→ quá khứ đơn

++ QKĐ →→ QKHT

++ will →→ would

++ HTHT →→ QKHT