题文
Sorry. At no time ________in this building，sir.
| A．is smoking permitted |
| B．smoking is permitted |
| C．does smoking permit |
| D．smoking does permit |
推荐试卷
Sorry. At no time ________in this building，sir.
| A．is smoking permitted |
| B．smoking is permitted |
| C．does smoking permit |
| D．smoking does permit |
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