what is the simple subject in "My favorite activity is skating?"

The simple subject is "activity."

To find the simple subject in the given sentence "My favorite activity is skating," we need to first identify the verb and then determine who or what is performing the action of the verb.

In this sentence, the verb is "is." It links the subject "My favorite activity" to the subject complement "skating." The subject complement completes the meaning of the subject and describes what the subject is or does.

The simple subject is the main noun or pronoun that the sentence is about. In this case, it is "activity." The word "favorite" is an adjective describing the noun "activity," but it does not affect the simple subject.

Therefore, the simple subject in the sentence "My favorite activity is skating" is "activity."