Now,he (watch)the t.V.

What is the assignment? What are you supposed to do?

I need help identifying and his word in this sentence.

Although I do not pretend to understand the science behind it, this is reassuring* to me.
The word with the asterik needs to be identified as

Article
Adjective-
Adverb, or
Compound adjective.
My answer -

To determine the correct form of the verb "watch" in the given sentence, we need to identify the subject and the tense being used. In this case, the subject is "he" and the tense is present continuous.

To form the present continuous tense, we use the base form of the verb ("watch") and add the present participle form of the auxiliary verb "be" (am/are/is) before it.

So, the correct form of the verb "watch" in the given sentence is:

Now, he is watching the TV.