—Where is your uncle?—He to South Africa on business. He has there twice.A. has been; go

问题补充：

—Where is your uncle?

—He to South Africa on business. He has there twice.

A. has been; gone

B. has gone; been

C. went; gone

D. will go; been

答案：

A. has been; gone

(答案→)B. has gone; been

C. went; gone

D. will go; been

解析：句意：你的叔叔在哪儿？——他已经出差去了南非。他已经去过那儿两次了。在完成时态中has been to 是已经去过某处，并且已经回来了。has gone to 是已经去了某处，但是到目前为止还没有回来。 has been in 是已经在某处，并且现在还在那里，而且有可能要延续下去。 结合语境可知选B。