The correct answer is was working.
You need to use past continuous tense (was working) to denote that an action which was being processed for a period of time has now been interrupted. So, Penelope was working on her homework for a prolonged period of time, and then the doorbell rang and interrupted her.
Answer:
dull brownish-gray color
Explanation:
I took the quiz -
The Definition of dun (Entry 2 of 4) 1 : a horse with a grayish-yellow coat and a black mane and tail : a dun horse 2 : a variable color averaging a nearly neutral slightly brownish dark gray
Answer:
integrity versus despair.
Explanation:
An elderly woman who revels in stories of both business failures and successes as she writes a candid autobiography is in integrity versus despair/ eighth stage of Erikson's psychosocial development.