[求助]考古題問題

rosieres

[face=Arial]Many women who might otherwise choose teaching as a career in the past are now going into business, government, and industry, areas where there are opportunities not previously available to them.

我選(A)who might otherwise choose teaching as a career in the past
答案(C)who might once have chosen teaching as a career

Why~Why~once不是要用過去式ㄇ?
麻煩大家幫忙~~3Q![/face]

lavie

once的确一般是用于过去时，但是我没有查到资料说它做formerly解时，一定要用于过去时或一定不能用于过去完成时

我想SC用排除法的思路来做更好一些，首先排除那些有明显错误的，比如A选项里，choose的时态和in the past是明显冲突的

gt750

这题你可看看OG188。

同样的句型。遵循平行。
ONCE 对：NOW
MIGHT HAVE CHOSEN 对：ARE GOING

而A项IN THE PAST 表过去，MIGHT对过去进行虚拟应用MIGHT HAVE DONE， 而不是： MIGHT DO STH。