The question is about converting direct speech into reported speech, which is a common topic in English grammar. Let's handle each sentence one at a time and transform them into reported speech.
The father said to the son, "Be honest."
In reported speech, commands or requests are usually reported using the verb 'ask' or 'tell', and we often use the infinitive form of the verb in direct speech. Here, since the father is giving a command to the son, you would use 'told' or 'asked'.
Reported speech: The father told the son to be honest.
The structure here is: [Subject + told/asked + object + to + base verb].
Smarika said to Bhumika, "Help me do my homework."
Again, this is a request. In reported speech, transform it using 'asked' since Smarika is asking Bhumika to help.
Reported speech: Smarika asked Bhumika to help her do her homework.
Note the change from "me" to "her" to reflect the change in perspective. The structure remains [Subject + asked + object + to + base verb].
When converting from direct to reported speech, also pay attention to pronoun changes and possible verb tense shifts, although tense changes don't apply in these imperative and request sentences.