Multiple choice

The children go to bed _________ nine o’clock, only then can I watch television.

  1. on

  2. in

  3. during

  4. at

  5. .
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 Here, at is the correct option as it is used in expressing location or arrival in a particular place, position or expressing the time when an event takes place. ‘On’ as a preposition of time is used for days and dates. ‘In’ as a preposition of time is used for months, years, centuries and long periods. During is used to imply the course or duration of a period of time.

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