Which sentence uses the correct preposition for time? A. ...

★ Comparatives, Superlatives, and Modals

Which sentence uses the correct preposition for time?

A. We have a meeting on 9 o’clock.

B. We have a meeting at 9 o’clock.

C. We have a meeting in 9 o’clock.

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Which sentence uses ‘be allowed to’ for a rule?

A. Students aren’t allowed to use their phones during the exam.

B. Students aren’t allow to use their phones during the exam.

C. Students aren’t allowed use their phones during the exam.