Read the passage then fill into the gaps with a suitable word

 VIII . Read the passage then fill into the gaps with a suitable word            

Big cities around the world (1)……have…….. traffic problems. Mumbai in India is one of them. Mumbai is one of the most congested cities in the world. Traffic jams happen nearly every day, so drivers have to spend a lot of time on the road.

There are several reasons (2)…for…….. traffic jams in this (3)……city…….. One reason is its increase in population. (4)……with…… nearly 20 million, Mumbai has too many people on the road. Another reason is that the roads in Mumbai are narrow, and many are not in good