meat do you need?-One kilo.A. How many B. How much C. How long D. How often

问题补充：

--- meat do you need?

---One kilo.

A. How many

B. How much

C. How long

D. How often

答案：

A. How many

(答案→)B. How much

C. How long

D. How often

解析：How many多少个；How much多少，对钱，重量等不可数的量进行提问；How long多长；How often多久一次。根据答语One kilo，一公斤。可知选B。