I think the verb phrase may be "had been promised".
<em>here
subject is <u>the door..
</u><u />predicate is <u>open ..</u>
<u> predicate is what you said about the subject , subject is about whom you used the predicate ..</u></em>
You could use definition or root word to better understand the word or to learn what it means.
Looks good Hope this helps!!!
