Change the following sentence from Direct speech to Indirect Speech:…

The correct answer is Option (2) → The coach promised that if I came before school the next day, he would teach it to me.

Direct to indirect speech (past reporting verb):

Change	Direct	Indirect	Why
Reporting verb	promised, “	promised that	“Promised” is kept, and the reported statement is joined with “that”.
Tense change	will come, will teach	came, would teach	The past reporting verb moves the verbs one step back: “will teach” becomes “would teach”. In the if-clause the condition becomes the simple past, “came”.
Pronoun change	you, I	I, he, to me	The coach is speaking to the reporter, so “you” becomes “I” and “I” becomes “he” (the coach). The person taught is made clear with “to me”.
Words of nearness (time and place)	tomorrow	the next day	“Tomorrow” becomes “the next day”.
Full sentence	The coach promised, “If you will come before school tomorrow, I will teach it.”	The coach promised that if I came before school the next day, he would teach it to me.

Example: He said, “I will call you tomorrow.” → He said that he would call me the next day.

Why the Other Options are Incorrect?

Option 1: The coach promised to meet me after school and teach it. — Incorrect. It changes the meaning: "after school" instead of before school, and the condition (if I came) is lost.

Option 3: The coach promised to come before school and teach it to me. — Incorrect. It makes the coach the one who comes. In the direct speech it is the listener who must come.

Option 4: The coach promised that I will be thought before school if I came — Incorrect.

• "will" is not changed to "would" after the past reporting verb.
• "thought" is the wrong word (the past participle of teach is "taught"), and the time word "the next day" is missing.