Put a suitable preposition in each blank

IV. Put a suitable preposition in each blank.
1.    I was born _____ January 1st, 1965.
2.    When did you meet him? - _____ lunch today.
3.    It often rains _____ October _____ Vietnam.
4.    What are you going to do _____ 2020?
5.    I don’t know but I am going to go to college _____ September this year.
6.    You want to watch the sky _____ sunset?
7.    Sure. And I like to go for a walk _____ sunrise, too.
8.    Well, let’s go for a walk ______ the weekends.
9.    I don’t know what he is doing ______ the moment.
10.    What did he do ______ the ninth of April, 2000?
11.    She often hears some strange noise _______ midnight.
12.    Does it rain _____ Spring