—Zhang Lei do you have soccer ball?—Yes I do.A. aB. anC. theD. /

问题补充：

—Zhang Lei, do you have soccer ball?

—Yes, I do.

A. a

B. an

C. the

D. /

答案：

(答案→)A. a

B. an

C. the

D. /

解析：句意：——张雷，你有一个足球吗？——是的，我有。修饰单数名词soccer ball,故用不定冠词a。故选A。