the answer is B,tell my why

学习 时间:2026-04-08 23:26:02 阅读:310
the answer is B,tell my whyto my satisfaction,i noticed that their work_____B was being improved D had being improved

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快乐的宝贝

酷炫的发夹

2026-04-08 23:26:02

was being improved 表示IMPROVE 的动作当时正在进行。had being improved强调已经完成,发生在过去的过去。improve 发生在notice之前

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  • 文静的大地
    回复
    2026-04-08 23:26:02

    was being improved 表示IMPROVE 的动作当时正在进行。had being improved强调已经完成,发生在过去的过去。improve 发生在notice之前

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