Answer: A) At/on
Explanation for this question is being written.
Answer: A) Since
Answer: C) On
Answer: C) At
Answer: B) On
Answer: B) In
Answer: E) On
Answer: C) In
Answer: C) ON
Answer: A) In
Answer: C) Until
Answer: D) At
Answer: B) A long time ago.
Answer: C) For
Answer: D) In
Answer: B) IN
Answer: D) -
Answer: C) On, at.
Answer: C) We have a meeting on Friday morning in the conference room.
Answer: B) At
Answer: B) ON
Answer: C) Since 2016.
Answer: A) For
Answer: A) On / at.
Answer: D) PREP
Answer: C) At, on.
Answer: C) C
Answer: A) At
Answer: A) Night
Answer: A) AT
Answer: B) For
Answer: B) Since