---Which do you like?- Purple.A. colorB. fruitC. sportD. vegetable

问题补充：

---Which do you like? --- Purple.

A. color

B. fruit

C. sport

D. vegetable

答案：

(答案→)A. color

B. fruit

C. sport

D. vegetable

解析：根据答语purple“紫色”可知,上句是问的颜色，所以应该用what color。而fruit“水果”，sport“体育”，vegetable“蔬菜”都不符合题意。所以本题选A.