He began to write two hours ago. He ____have finished the article now.
A、might
B、ought
C、ought to
D、had to
【正确答案】：C
【题目解析】：C ought to表推测，暗含很大的可能。其语气较may强，较must弱。其过去时与原形一样,都是 ought to.
He began to write two hours ago. He ____have finished the articl
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