Answer: B) On
Explanation for this question is being written.
Answer: A) In
Answer: A) On
Answer: D) On
Answer: C) On, at, in.
Answer: A) IN
Answer: C) On
Answer: B) At
Answer: A) Since
Answer: A) At
Answer: B) In
Answer: C) At
Answer: A) At / in.
Answer: B) Midnight
Answer: D) From
Answer: B) IN
Answer: C) In
Answer: C) In, at.
Answer: D) From, to.
Answer: D) You mustn't forget to take necessary things on your trips.
Answer: B) 4:45
Answer: B) Five o'clock.
Answer: A) Past
Answer: A) By
Answer: B) By February 10th.
Answer: D) At
Answer: B) Since