The sentence "I baked my friend" has both a direct object and an indirect object. In this case, "my friend" is the indirect object (the person who receives the action), and the implied direct object would be the thing that was baked, which is not stated explicitly but is understood as something like a cake or dessert.
The other sentences do not have both types of objects.
- "The cat chases the mouse" has a direct object ("the mouse") but no indirect object.
- "We are going to the movies" has no objects.
- "He read a book" has a direct object ("a book") but no indirect object.