Question

The teacher said, "Write your name on the board." ( Change it into indirect speech/reported speech)​

Answer 1

Answer:

the teacher ordered to write his name on the board

or

the teacher asked him to write his name on the board

Answer 2

Answer:

The teacher said "they should write their name on the board

Explanation:

Direct speech: you, I, shall etc.

Indirect speech: they, us, should etc.