Rellena los huecos con la preposición de tiempo adecuada: in, on, at, from, to.

1. I study Maths ______ the afternoon.

2. My father works ______ Saturdays.

3. My mother works ______ Saturday mornings.

4. My birthday is ______ July, ______ summer.

5. Come to my house _____ five o'clock.

6. I am with my family _____ Christmas.

7. The museum opens ______ 9.00 ______ 21.00.

8. She was born ______ 1985.

9. I go out with my friends ______ nights.

10. School finishes ______ 20th June.

11. I'll see you ______ Christmas Day.

12. I'll be at home ______ eight o'clock ______ nine o'clock.