--- Has your brother returned from the USA yet?
---- Yes, but he here for only two days before his pany sent him to Australia.
A. stayed
B. has stayed
C. will stay
D. was staying
网友回答
(答案→)A. stayed
B. has stayed
C. will stay
D. was staying
解析：考查时态。句意：你的弟弟已经从美国回来了吗？是的，但是在他的公司派他去澳大利亚之前他只在这呆了两天。派去澳大利亚是过去的事，所以在这呆两天也是过去的事，要用一般过去时态。选A。