-How many are there in the basket? fourteen.A. potato they’reB. potatos There’s

问题补充：

---How many are there in the basket?

--- fourteen.

A. potato, they’re

B. potatos, There’s

C. potatoes, There’re

D. potatoes, There is

答案：

A. potato, they’re

B. potatos, There’s

(答案→)C. potatoes, There’re

D. potatoes, There is

解析：句意：篮子里有多少土豆？有十四个。potato土豆,复数形式potatoes。.以O结尾的名词变复数加es的口诀：英雄(hero)黑人(Negro吃土豆（potato）和西红柿（tomato），.以O结尾的名词只有这几个加es，其它都加s.There be句型，就近原则，后跟复数，故用are, 结合语境可知选C。