Answer:
It is a simple past tense.
Explanation:
If it should be continuous tense, then it would be “Have eaten”.
I think someone is knocking at the door
During this part of the proofreading<span> procedure, you should search for errors in spelling, word usage, grammar, and punctuation. After all, a poorly </span>written<span> paper cannot possibly communicate its message properly to the reader. ... Editing is not just the icing on the cake; it is an essential part of the </span>writing<span> process.</span>
