is the population of the town?---Over 20 000. And a third of the population workers of

问题补充：

--- is the population of the town?

---Over 20,000. And a third of the population workers of the car factory.

A. What, are

B. How many , are

C. What , is

D. How many, is

答案：

(答案→)A. What, are

B. How many , are

C. What , is

D. How many, is

解析：在英文中，对于人口有多少通常用what来提问，回答语中人口的三分之一表示的是复数概念，故be用are，故本题选A。