Question

C. Underline the correct preposition
9. Do you get presents on/in Christmas Day?
1. What will you do on/in Monday?
10. We had lunch at/on noon.
2. It is often rainy at/in autumn.
11. My father was born on/in 1970.
3. What did you do in/at the afternoon?
12. It is very cold at/in winter.
4. I often get up on/at 7o'clock.
13. Will you go to the club on/in Friday morning?
5. Flowers are beautiful at/in spring.
14. What did you do at/in Easter?
6. I watched a new film on/at midnight.
15. She is at/in London now.
7. My brother's birthday is at/on 16th December.
16. We'll go to a picnic in/on Saturday.
17. The concert starts on/at 6 p.m.
8. Sam watched football on/in the evening.​

Answer 1

9:on
1:on
10:at
2:in
11:in
3:at
12in
4:at
13:on
5:in
14:at
6:at
15:in
7’on
16:on
17:at
8:in


Espero haberte ayudado