26. The drivers _____ about who was to blame for the crash for over 2 hours when the police arrived on the scene.
| A．have been arguing | B．were arguing | C．argued | D．had been arguing |
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26. The drivers _____ about who was to blame for the crash for over 2 hours when the police arrived on the scene.
| A．have been arguing | B．were arguing | C．argued | D．had been arguing |
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