—Do you an American friend?—No I don’t. But my sister one.A. has hasB. has haveC. hav

问题补充：

—Do you an American friend?

—No, I don’t. But my sister one.

A. has, has

B. has, have

C. have, have

D. have, has

答案：

A. has, has

B. has, have

C. have, have

(答案→)D. have, has

解析：在一般现在时态一般疑问句中，行为动词要用原形，在肯定句中，当主语为三单形式时，动词要用三单形式。故选D