— is this blue shirt?—It’s seven dollars.A. How manyB. How muchC. How oldD. How tall

问题补充：

— is this blue shirt?

—It’s seven dollars.

A. How many

B. How much

C. How old

D. How tall

答案：

A. How many

(答案→)B. How much

C. How old

D. How tall

解析：句意：——这件蓝色的衬衫多少钱？——7美元。A. How many 多少，对数量提问；B. How much 多少钱，对价格提问； C. How old多大，对年龄提问； D. How tall多高，对高度提问。根据It’s seven dollars.可知此处是对价格提问，故选B。