Answer: C) On
Explanation for this question is being written.
Answer: A) After dinner.
Answer: B) ON
Answer: D) Around
Answer: A) In
Answer: A) At
Answer: A) During
Answer: B) On at.
Answer: A) On
Answer: C) At
Answer: C) On / in.
Answer: D) On
Answer: B) During
Answer: B) For
Answer: D) Upon
Answer: B) Lenght of time (start to finish).
Answer: B) Over
Answer: A) Before
Answer: A) At the weekend.
Answer: C) For/yet
Answer: C) Preposition
Answer: B) On
Answer: C) In
Answer: B) In
Answer: C) Since
Answer: A) At noon and at night.
Answer: B) After
Answer: B) Since
Answer: A) Before school.
Answer: C) In the evening.
Answer: D) In
Answer: B) At 6:30.
Answer: B) Until
Answer: C) During
Answer: A) After college.
Answer: C) Before
Answer: A) For
Answer: D) At
Answer: B) By