Jack,you’re so lazy!This job       hours ago.
A．should finishB．must have finished
C．ought to have been finished D．was about to finish
C
“ought to(should)+不定完成被動”表示不定的被動動作該完成而未做。該句意為：杰克你真懶！這項工作該在數(shù)小時前就完成了。
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