* Fill in each blank with a suitable preposition.
1. Years of fighting have left the area ………………ruins.
2. It’s expected that the rate of crime will go ………………soon.
3. It has been claimed that wine helps protect ………………heart disease.
4. North American literature is the main theme ………………this year’s festival.
5. Ba Den Mountain is located ………………the northeast of Tay Ninh Province.
6. It is said that China dug ………………the ocean floor to build artificial islands.
7. It was reported that some foreigners had collected rubbish ………………Cat Ba Beach.
8. In 1978, the south and north Cat Tien parts were put ………………the state’s protection.
9. The public suggested that the factories should be equipped ………………waste treatment system.
10. The local government suggested building a road ………………the Nam Cat Tien National Park.