Select the correct indirect form of the given sentence.

He promised, "I will do it tomorrow."

He promised that he would do it the next day.

The correct indirect form of the given sentence is:

He promised that he would do it the next day.

The other options are incorrect for the following reasons:

• He promised that they will do it the next day. The pronoun "they" should be "he", since the subject of the reported clause is "he".
• He promised that he would have do it the yesterday. The verb "have" is unnecessary in indirect speech. Additionally, the word "yesterday" should be "the next day", since the reported clause is in the future tense.
• He promised that he would do it the tommorow. The spelling of "tomorrow" is incorrect.