The price of vegetables v______________ from season to season.
Chunxi Street is the c _______________ center of Chengdu.
The c ______________ between different ethnic groups caused a series of wars.
It suddenly o ______________ to me that I might have been taken in by him.
Many countries highly v ______________ China’s role in keeping world peace.
Zhang Wuben exaggerated the quantity of ______________ (营养物质) contained in
beans and garlic, causing their price to rise rapidly.
. Having lost a leg in the car accident, the girl remained ______________ (乐观的)  
and tried to cheer up other patients in her room.
The CEO of the company has announced his ______________ (打算，意图) to retire.
Zhen He was the first Chinese to make a ______________ (航海，航行) around the 
world.
His ______________ (鼓舞人心的) speech gave encouragement to all the audience
present.