题文
Nanjing Underground Line 10 ______ on the morning of February 27th, 2014.
| A．tested | B．has tested |
| C．was tested | D．has been tested |
Nanjing Underground Line 10 ______ on the morning of February 27th, 2014.
| A．tested | B．has tested |
| C．was tested | D．has been tested |
试题篮
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