`1,` Bill asked me if I wanted to buy any second - hand book.
`2,` Lan asked me if I played any musical instruments.
`3,` Bill asked me if I had time to play regularly.
`4,` Lan asked me if I played for my school team.
`5,` He asked me if I could speak any other languages.
`6,` Lan asked me if I was interested in learning English.
`7,` Lan asked me if there was a phone.
`8,` He asked me if I had many friends.
`9,` Lan asked me if I often got home after 10.30 p.m.
`10,` Lan asked me if I could speak English.
`11,` He asked me if I was working as well as studying.
`12,` Lan asked me if I was interested in acting.
`13,` He asked me if there was a college orchestra.
`14,` Lan asked me if I had seen her car keys.
`15,` He asked me if I would come there the next week.
`=>` Câu tường thuật với Yes/ No question:
S + asked + O + if/ whenever + S + V