---Has your father returned from Africa yet?
---Yes, but he here for only three days before his pany sent him to Australia．
A. was
B. has been
C. will be
D. would be
网友回答
(答案→)A. was
B. has been
C. will be
D. would be
解析：考查时态;句意是：你爸爸从非洲回来了吗？--是，但在公司派他去澳大利亚前，他只在这儿呆了三天，说明在这儿三天是发生在去澳大利亚前，也就是过去时间，选A。