Which of the following sentences illustrates correct usage of articles and conjunctions?

What is a subordinating conjunction?

"He is the very model of a diplomat." What part of speech is "is"?

An imperative sentence:

Which part of the following sentence is incorrect– "I have been thinking on my parents ever since I received their letter."

"Avery liked peaches, but Jason liked plums." Based on its structure, what type of sentence is this?

Which is an example of a subordinating conjunction?

Is this question grammatically correct? "If my sister can come too, I'll go to the party."

Identify the indirect object in the following sentence: "Did he send you a letter?"

What is a clause?

"The music is playing, it's time to dance." is an example of: