1. They said that I started playing the guitar two years ago

2. Lan lost her pens

3. An ambulance has just been sent to the school

4. The young man asked Mary if she saw what she saw]

5. It's a splash-water festival

6. Would you mind if I took a photograph?

7. Hoa asked Tim if the children were playing in the garden.

8.A new church has been built near my house

1.I started playing the guitar two years ago. 

→They said they started playing the guitar two years ago.

2.Lan/lose/ her pens 

→Lan is always losing her pens.

3.They have just sent an ambulance to the school

→An ambulance has just been sent to the school.

4.Do you see what I see,mary" said to the young man

→The young man asked Mary if she saw what he saw.

5. It is a festival in which people splash water on each other

→It's a water-splashing festival in which people do on each other.

6. It is alright if I take a photograph?

→Would you mind if I took a photograph?

7."are the children playing in the garden ron " hoa said to tim

→Hoa asked Tim if the children were playing in the garden ron.

8. They have built a new church new my house(Tại sao lại là new my house)

→A new church has been built near my house

chúc bạn học tốt!!!!