题文
We_______such great progress without your efforts. Thanks a lot.
| A．shouldn’t have made | B．couldn’t have made |
| C．were unable to make | D．mustn’t have made |
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We_______such great progress without your efforts. Thanks a lot.
| A．shouldn’t have made | B．couldn’t have made |
| C．were unable to make | D．mustn’t have made |
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