Thepoorboythetestagain;inthatcase,hismo

发布时间：2020-08-14 11:35:58

The poor boy          the test again; in that case, his mother will be very disappointedA.must have failedB.might failC.could have failedD.should fail

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B解析通过again和in that case, his mother will be very disappointed.可知这是对将来情况的一个猜测，
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