Oh Janne you’ve broken another glass. You ought ＿＿＿＿when you washed it. A. be carefulB.

问题补充：

Oh, Janne, you’ve broken another glass. You ought ＿＿＿＿when you washed it.

A. be careful

B. to care

C. have cared

D. to have been careful

答案：

A. be careful

B. to care

C. have cared

(答案→)D. to have been careful

解析：suould have done本该做某事，但没有做成。