Transitive verbs can sometimes occur without an overt direct object, although there is almost always an unexpressed, covert direct object, one that is somehow understood.
eg. He ate./ The children are reading./ Martha is studying.
The verbs bake, hunt, and iron can all occur with unexpressed but commonly understood direct objects. When someone hunts something other than wild game, a direct object is required and for typically follows the verb--Wayne is hunting versus Wayne is hunting for his shoes.
When drink occurs without a direct object, it usually implies the consumption of alcohol.-Tina drinks.
