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Pregunta 1

The online briefing begins ___ 9.30 exactly. Choose the standard clock-time phrase.

  1. in 9.30
  2. at 9.30Respuesta correcta
  3. on 9.30
  4. by 9.30

Explicación

At 9.30 is right because exact clock times are treated as points in time. By 9.30 would set a deadline no later than that time, not the exact start time stated.

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Pregunta 1: The online briefing begins ___ 9.30 exactly. Choose the… · English Prepositions · Questena