What kind of sentence error is demonstrated below?

I saw a door that looked as though no one ever used it, naturally, I opened it then.

fragment

comma-splice

no error found

Which lines in this excerpt from Bram Stoker's Dracula suggest that Jonathan Harker is in a liminal state, which was a common Gothic convention? Dracula by Bram Stoker (excerpt) ?

Select the choice which features correct pronoun-antecedent agreement. A) Both of the boys had his shoes on. B) Both of the boys had its shoes on. C) Neither of the boys had his shoes on. D) Neither of the boys had their shoes on.

What percentage of the U. S. population serves in the military?

What is the subject in the following sentence? After breakfast, she needs to run a few errands A. after B. she C. errands D. breakfast

This is a song I am writing called Asylum. Let me know how it is! We can kill it, we can ice it we could take it to an asylum. we can knife it we can axe it we can take it back to OUR asylum

Which word in the sentence does the adjective modify? That was a very tasty sandwich! A. that B. very C. was D. sandwich

Choose the complete sentence. Before the audience was seated. May have a bad case of the flu. No one expected that outcome. The flickering light in the hallway.

Which woman was a pioneering journalist for the new york times?

The people that Hersey focuses on can best be described as government officials ordinary people heroic soldiers wealthy civilians

Which sentence uses a verb that agrees with its compound subject? A. Those batteries and this light bulb have lasted for months. B. Now either we or the neighbor have a key to the house. C. Aunt Meg and Aunt Harriet knits hats for gifts every year.