The direct object of a verb is the thing being acted upon (i.e, it indicates the person or thing that receives the action of a verb..
To find the direct object in a sentence, ask the question Who? or What?
"Simon watered the flowers." What did Simon water? The flowers. The flowers are the direct object.
In the sentence, "I made a card for her", the direct object is card and the indirect object is her.
"They bought David a car." Car is the direct object and David is the indirect object.
This is the formula to remember:
subject + verb + what? or who? = direct object
If nothing answers the who or what question, then there is no direct object. For example, The bird flew high. We ask, the bird flew whom or what? Because there is no answer to this question, the sentence has no direct object.
Now find the direct objects in these sentences: