___________introduced into the boxing sport

___________introduced into the boxing sport
A Not until 1860 had the use of gloves
B Not until 1860 had the was of gloves
C It was not until 1860 was the use of the gloves
D It was not until 1860 that the use of gloves had been

济南没有下雨 1年前已收到6个回答举报

meinvda 幼苗

共回答了13个问题采纳率：100% 举报

D,D是强调句,去掉It was …… that,句子就成了 not until 1860 the use of gloves had been introduced into the boxing sport.
the use of gloves是主语,had been introduced表示被动,而且因为 not until 1860是有时间提示的,所以要过去完成被动式.
A没倒装
B双谓语
C句法不对
好久没读英语,有解释错的请指出,

1年前