--Where is your father? --He to Australia on business.A. has beenB. wentC. has goneD. will

问题补充：

--Where is your father?

--He to Australia on business.

A. has been

B. went

C. has gone

D. will go

答案：

A. has been

B. went

(答案→)C. has gone

D. will go

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