Friendship among the nations will _______the economic development of the region.

The accident was ________ the driver’s careless driving rather than bad weather.

You’d better take a map with you when you go to a strange place ___ you get lost.      

His mother doesn’t ________ of her going to study in the United States alone.

In the activity, a few hours of “disability” gave us only a taste of the _______ both physically and mentally the disabled people should overcome.

China has been considering raising the retirement age since 2008 to ________ its shrinking workforce and aging society.

The government has been under growing pressure to ________ the causes of air pollution as smog frequently smothers the country’s large cities.

Cartoons should _________ social morality and family values and avoid violent scenes, including those that children could easily imitate.

According to a UN report，one third of the world population have no      to clean drinking water and health care.

New Zealand, in the south Pacific , ______ two large islands plus other smaller islands .