单选题Oh  Janne  you’ve broken&

问题补充：

单选题Oh,Janne,you’vebrokenanotherglass.Youought＿＿＿＿whenyouwashedit.A.be carefulB.to careC.have caredD.to have been careful

答案：

D解析should/ought to have done表示“本来应该做的事而事实上并未做”。根据上下文，句中省去了seen her。