The "Hope you are enjoying summer" is just a statement. I would say that they wrote to be polite.
He was sleepily enjoying the night.
interrogative sentence
An empty expressio (ee) is a sentence that does not express anything, a sentence with no importance.
An exclamatory sentence is a sentence that demonstrates a sharp or sudden utterance or a vehement expression of protest or complaint.
It is both a question AND a sentence.
The word "enjoying" in the question "Are you enjoying the party?" is a present participle functioning as a verb.
They were expecting the visitors to arrive at 4pm.
Can it be that she sat under the canopy enjoying a canape?
"Johnny was expecting his friend over after school."
Please accept this expression of sorrow for the fact that I am unable to answer this question.
That's correct. A question is a sentence that typically seeks information or clarification, while a rhetorical question is one posed for its persuasive effect without expecting an answer.
Enjoying
fragment sentence
The phrase "What kind of sentence" could be seen as a question prompting for more information about the incomplete thought or unclear expression. It seeks clarification regarding the type or structure of the sentence in question.
What is a sentence for expression
Placing a question mark at the end of an expression does not make it a sensible question. Try to use a whole sentence to describe what it is that you want answered.
Yes and no. It is a complete sentence, but your helping verb needs to be plural. "Bella and the Cullens ARE expecting company from Italy.