题文
---How long ____the supermarket ____? ---Four years.
| A．has, opened |
| B．has, been opened |
| C．did; open |
| D．has, been open |
---How long ____the supermarket ____? ---Four years.
| A．has, opened |
| B．has, been opened |
| C．did; open |
| D．has, been open |
试题篮
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