题文
Most of the students felt rather disappointed at the English party. They say that it ______ better organized.
| A．had been | B．had to be | C．must have been | D．could have been |
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Most of the students felt rather disappointed at the English party. They say that it ______ better organized.
| A．had been | B．had to be | C．must have been | D．could have been |
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