Know, because know is present tense as is the rest of the sentence.
A. Sheila ate her lunch in the cafeteria.
He killed him self after think that his loved one was dead
It originated in England in the second half of the 18th century where, following Walpole, it was further developed by Clara Reeve<span>, </span>Ann Radcliffe<span>, </span>William Thomas Beckford<span> and </span>Matthew Lewis<span>. </span>
Answer:
undergoing the process of decay, rotting. rotten flesh, for example.