Answer:
4.Menace:Threat:Agile:: nimble 5.Happiness:Misery::Arrival: departure
Mumbai is one of the biggest city in India (other two degrees)
Positive degree- Not many cities in India are as big as Mumbai.
Comparative degree- Mumbai is bigger than many other cities in India
Reported Speech-
The doctor told the student to take exercise regularly and sleep with the windows open.
Reference to context
This tells us that what is a necessity and what is a greed. Example- When we go to a mall and buy clothes that is not our necessity but greed. Buying food is our necessity. Food as in not fast food but the healthy food. Food,clothes, shelter is our necessity. Cars, watches, jewellery etc. is our greed. We must think before we spent. That's what the quote "I really don't see the necessity" means.