You should open the bottle about three hours before you use it.
Correct answer: D. The bottle should be opened about three hours before it is used.
- A. The bottle should be opened about three hours before using
- B. The bottle should be opened by you three hours before use.
- C. The bottle should opened about three hours before used.
- D. The bottle should be opened about three hours before it is used.
Explanation
This option is the most accurate passive voice construction of the original sentence, as it clearly conveys the intended meaning and maintains the same level of politeness and formality.
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