Answer: C) For
Explanation for this question is being written.
Answer: B) At
Answer: B) B
Answer: B) During
Answer: B) We always visit my grandparents at Christmas.
Answer: B) In
Answer: A) Before
Answer: C) Yesterday
Answer: B) Since
Answer: A) Preposition
Answer: B) ON
Answer: A) In
Answer: A) On
Answer: D) On
Answer: A) During
Answer: B) Midnight
Answer: A) At, in, on.
Answer: A) By
Answer: B) On
Answer: A) After
Answer: A) For
Answer: B) In / of / on / of.
Answer: A) Past
Answer: A) At
Answer: B) After
Answer: C) In
Answer: A) 1. in.
Answer: D) Within
Answer: C) On
Answer: C) From to.
Answer: A) Since
Answer: B) On/in
Answer: C) Let's go to the park on Saturday afternoon.
Answer: C) During
Answer: C) 3. last.
Answer: D) Over