"Him" is the indirect object.
"Lena" is the subject, the person performing the action. "Tell" is the verb, the action performed. "The truth" is the direct object, the recipient of the action. "Him" is affected by the action.
Hope this helps! :)
“Of the team” is the prepositional phrase. It is used to clarify what David is captain of.
She could possibly be sad
Dear (friend),
You should do your homework so that you understand the subject taught in class. If you don't do your homework, your grades will drop and you will not receive a good grade in the class.
Your friend,
(Name)