I ______ her, but I never could.A．ought to helpB．must helpC．ought to have helped
题型：不详难度：来源：
I ______ her, but I never could.| A．ought to help | B．must help | | C．ought to have helped | D．must have helped |
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答案
| C |
解析
| 本题考查ought的用法。ought to + have+done表示过去应该做某事却没做。 |
举一反三
—Hi, Johnson, any idea where Susan is?
—It"s class time, so she in the classroom now.| A．can be | B．must have been | C．might have been | D．should be |
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Mary __________ the job he offered to her, but she didn’t.| A．can’t take | B．ought to have taken | C．should take | D．must have taken |
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--- Are you in a hurry?
--- No, in fact, I’ve got plenty of time. I _______ wait. |
—Are you going to help him?
—Why ___ I help him? He" s never done anything for me．| A．would | B．could | C．might | D．should |
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—I didn’t tell him the news.
—Oh, you ought _______.| A．to | B．not to | C．not to have | D．to have |
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