题文
Only under special circumstances ________to use the fire hose, otherwise they will be punished.
| A．are people permitted |
| B．people are permitted |
| C．people permit |
| D．do people permit |
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Only under special circumstances ________to use the fire hose, otherwise they will be punished.
| A．are people permitted |
| B．people are permitted |
| C．people permit |
| D．do people permit |
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