—What's that noise?
—Oh，I forgot to tell you.The new machine ________.
| A．was tested | B．will be tested |
| C．is being tested | D．has been tested |
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—What's that noise?
—Oh，I forgot to tell you.The new machine ________.
| A．was tested | B．will be tested |
| C．is being tested | D．has been tested |
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