She <span>had been working</span> on the project for 2 days before she finished it. So B is the only right one as it's a continuous action before an action with an exact defining past perfect continuous. Also there's a key word "for" that can help us to find out the tense.
I don’t get your question
Karen can make 2 and 1/24 servings of 1/3 cups of ice cream
Sorry, can you add more detail please
Answer:
Jonah and his father. They have different opinions on society.