—Paul do you an American friend?—No I don’t. But my sister one. A. has; has B. have; h

问题补充：

—Paul, do you an American friend?

—No, I don’t. But my sister one.

A. has; has

B. have; have

C. have; has

D. has; have

答案：

A. has; has

B. have; have

(答案→)C. have; has

D. has; have

解析：句意：——保罗，你有一个美国朋友吗？——我没有。但是我的姐姐有一个。第一空用于一般疑问句中，主语之后用动词原形，故此处为have。第二空的主语是my sister，第三人称单数，故用谓语has。故选C。