摘要：23．There ought to be an exam this week, ? A．oughtn’t it B．isn’t it C．oughtn’t there D．isn’t there
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There ought to be an exam this week, _________?
A．oughtn’t it B．isn’t it C．oughtn’t there D．isn’t there
查看习题详情和答案>>There ought to be an exam this week, ________ ?
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A．oughtn't it |
B．isn't it |
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C．oughtn't there |
D．isn't there |