10. ----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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10. ----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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