Not until he retired from teaching three years ago ___ having a holiday abroad.
问题描述：
Not until he retired from teaching three years ago ___ having a holiday abroad.
A he had considered
B had he considered
C he considered
D did he consider
我觉得是“在退休之前未考虑过度假”,但是为什么不用过完呢?
当然倒装我是知道的,但是B.
答
考察的是Not until 的倒装句.当把Not until 放到句首是主句需倒装.
B选项中时态不对.句意为:直到退休三年后,他才考虑去国外度假.考虑国外度假的动作发生在退休之后.所以应用一般过去.