The world population is expected to rise to more than nine billion by 2050,one-third of all people________expected to live in cities.

For what kind of people are the 34th International Jazz Festival of Montreal recommended？

Recent decades have witnessed increased globalization of the world economy associated with economic and financial________among countries.

Heating,ventilating,and air conditioning（HVAC）systems are________in most of underground subway stations to provide comfortable and fresh air to underground subway stations.

What type of document is this?

Josh graduated with his master’s degree in space studies and planetary sciences,but after years of working odd jobs and barely________,he decided to go back to get his teaching license.

What type of article is this?

For decades,farmers and environmentalists in California have been entangled in a________over laws that limit the amount of water diverted from rivers and streams for irrigation.

The FIFA World Cup soccer championship in Russia is the most costly ever held.Now,experts question whether there will be a good________for the Russian taxpayer.

What type of customers does Hilton serve?

Hurricane Katrina passed in my own surroundings and ________many local residents.

Many sources of information can________our chances of getting in touch with the current events in the world.