Until 1982 he was a senior lecturer.可否改成如下句子:?
1/ Until 1982 he had been a senior lecturer.
2/ Before 1982 he was a senior lecturer.
3/ Before 1982 he had been a senior lecturer.
Until 1982 he was a senior lecturer.
1/ Until 1982 he had been a senior lecturer.
(时态不是问题,跟首句意思相同)
2/ Before 1982 he was a senior lecturer.
(时态正确,但意思不完全等于首句。首句的意思是“他当高级讲师这个职位一直持续的1982年,暗含一段时间,但是到了1982年就不再是了,可能成为了副教授。” 而本句仅表示“在1982年这个时间点之前,他是个高级讲师”,其他信息一无所知。)
3/ Before 1982 he had been a senior lecturer.
(时态错误)
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