Told us you needed three books is not a complete sentence. It lacks a subject. For example, adding I, she, he, a person's name or a title would make this a complete sentence. Examples: He told us you needed three books. She told us you needed three books. Mrs. Krammer told us you needed three books. The teacher told us you needed three books.
A declarative sentence is one that describes things that make a definite statement. It is essentially the complete opposite of a question.
The topic sentence, the body with supporting sentences, and the clincher sentence
Using the word "then" at the beginning of a sentence is not incorrect. However, it does not make a sentence complete. A complete sentence must have, at a minimum, a subject and a verb. "Then" is neither of those.
My angst led me to complete this sentence.
The sentence was changed into a declarative sentence by adding a subject and a verb to make a complete statement. To break up the passage into three sentences, sections of the original sentence were separated to create shorter, more concise statements.
No, "How quickly you learn" is a sentence fragment. It lacks a subject and verb to make it a complete sentence.
sentence is a complete thought with a noun and verb. Fragment is just part of a sentence and does not make a complete thought.
Make each fragment into a complete sentence.
If you are asking whether the words "Is this a question" make a complete sentence, yes-- but not a declarative sentence. They make a question, and they need a question mark at the end. A declarative sentence is just a statement of fact: "Yes, this is a complete sentence." But a question is where you ask someone about something: "Do you have any questions to ask me?"
although
Periods are not allowed. Please make sure your question is a single sentenceYou may have some misspellings in your questionThis sentence is a fragment please add more to complete it