Grammar Review: Parts of Speech, Subject/Predicate, Direct Object/Indirect Object

In the sentence: Yes, I know what I need to do,,,what part of speech is "Yes"

Which is the plural common noun?

What is the simple subject? --The red boat is getting old.

What is the indirect object?: Sarah told Don a secret.

The classmates whispered behind my back.

What is the direct object in the following sentence?

What is the simple subject in the sentence: My wonderful friend John is leaving the country.

Choose the example of the conjunction.

In the sentence: My grandma went home...what part of speech is "my"?

What is the direct object?: Jane gave John a gift.

There will only be a direct or indirect object if the verb is a linking verb predicate.

What is the direct object of the sentence?

Name the pronoun.

Choose the example of a linking verb.

She is a very intelligent student.

Choose the example of the noun.

Sentence or not a sentence: I ran home.

Choose the example of an adverb.

What is the simple predicate in the sentence: My friend John left the country.

While living there.

Choose the example of a preposition.