There were no women in the committee _____ 1976,but now women are in a majority.A.before B.previous to C.ago D.earlier

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There were no women in the committee _____ 1976,but now women are in a majority.A.before B.previous to C.ago D.earlier

There were no women in the committee _____ 1976,but now women are in a majority.A.before B.previous to C.ago D.earlier
There were no women in the committee _____ 1976,but now women are in a majority.
A.before
B.previous to
C.ago
D.earlier

There were no women in the committee _____ 1976,but now women are in a majority.A.before B.previous to C.ago D.earlier

答案是A 这就是before的标准用法 b选项就没有这种用法 c选项用法应该是 tow years ago d是比较级 这里没有than 所以句型不对 并且earlier的用法也是 two years earlier

答案是错的。应该是 A
previous 是形容词,不能做副词,也没有这种用法。
ago 的用法是:two years ago
earlier 的用法是用来比较的,比如:Earlier the watermelon was cut.

previous to 在…之前,早于
1976以前,委员会中是没有女性的,但现在女性长大多数。其他词(组)不能表达句子需要的意思。
ago 一般用作 ten years ago这样的,earlier也是 a few hours earlier
按理说before应该也是可以的,但是previous to更贴切

这道题应该是选择B
previous to 1976是“在1976年以前”的意思
A选项用在这里也没有问题,不过B选项更妥当
C选项ago 通常放在时间之后 比如 two months ago 两个月前
earlier的意思是“更早的”语意不符