Answer: C) On
Explanation for this question is being written.
Answer: A) In
Answer: A) At
Answer: A) Preposition
Answer: B) On
Answer: B) For
Answer: D) On
Answer: B) At
Answer: A) Since
Answer: C) In
Answer: A) Before
Answer: C) Three weeks ago.
Answer: A) After college.
Answer: A) About
Answer: C) Tuesday, 7 January 2020.
Answer: A) On
Answer: A) In/in
Answer: B) When
Answer: D) For 20 years.
Answer: A) The doctor will come very soon.
Answer: C) Within
Answer: D) At
Answer: A) For
Answer: B) By
Answer: B) During
Answer: B) Since
Answer: C) At
Answer: C) During
Answer: B) Before
Answer: B) On the Sabbath.
Answer: C) Prepositions
Answer: A) At, in.
Answer: A) In the.
Answer: C) Arrival/departure
Answer: B) A few days.
Answer: C) 4 minutes.