题目内容：

 

[2017·云南师范大学附属中学高三高考适应性考试 (六)]

As it's easy to cultivate and it contains most of the vitamins necessary for health, potatoes are popular in cultures worldwide. Originating 1.________ South America, potatoes have been part of South American diet for hundreds of years. With multiple potato 2.________ (variety) in the market, they are fried, baked, freeze­dried to form many beloved dishes. In Ireland, from its introduction in the 16th century, potatoes3.________ (hold) a central place in the Irish diet and been considered as the primary Irish crop. In the US, potatoes are one of the most 4.________ (wide) consumed crops. French fries are commonly found in typical American fast­food restaurants and cafeterias. French fries were introduced to the US 5.________  Thomas Jefferson served them in the White House during 6.________  presidency from 1801—18

For many Chinese people, potatoes are considered a vegetable. 7.________ in the future, this will no longer be the case.“A programme to add potatoes to China's list of food, joining rice, wheat and corn, will 8.________ (expand) to diversify the Chinese menu and meet increasing food demands，”agricultural experts and authorities with the Ministry of Agriculture said in  9.________ conference on Jan.6.Specifically, potato powder will be mixed into bread and noodle to suit Chinese consumers' taste and 10.________ (eat) habit.