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He didnt do well in the exam

He didn't do well in the exam. He_____hard at his He didn't do well in the exam. He_____hard at his lessons. A. need to have worked B. ought to have worked C. must have worked D. would have worked

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2010-04-03

0 0
B考察情态动词,ought to =should,should have done表本应该做某事却没有做

2010-04-03

36 0
选择B. ought to have worked

2010-04-02

69 0
  He didn't do well in the exam。 He_____hard at his lessons。 A。 need to have worked B。 ought to have worked C。
  
   must have worked D。 would have worked 【答案】 :B。 ought to have worked 【解析】 :ought to:理应、应该。

2010-04-02

38 0
B. ought to have worked

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