问题
选择题
Jack,you’re so lazy!This job hours ago.
A．should finish
B．must have finished
C．ought to have been finished
D．was about to finish
答案
答案：C
“ought to(should)+不定完成被动”表示不定的被动动作该完成而未做。该句意为：杰克你真懒！这项工作该在数小时前就完成了。