Fill in prepositions if necessary: 1) he must go to st.petersburg ......spring. 2) we take our written exams....january. 3) our studies begin...autumn. 4) what do you do....sunday? 5) all the students of our group will take part in the concert....the eighth....may. 6) may i ring you up....the morning? 7) my elder brother is a doctor. he often comes...home late...night.8) is there anybody...the dean's office? 9) i must go and see him...three o'clock....friday. 10) listen....the new text....the laboratory. 11) look....the blackboard. do you see any mistakes.... it? 12) who is....duty today? 13) will you go....the blackboard? 14) you may go...your place. 15)......the right.....the dining-table there is a cupboard.

Here are the correct prepositions for each sentence:

1. He must go to St. Petersburg in spring.
2. We take our written exams in January.
3. Our studies begin in autumn.
4. What do you do on Sunday?
5. All the students of our group will take part in the concert on the eighth of May.
6. May I ring you up in the morning?
7. My elder brother is a doctor. He often comes — home late at night. (Note: "come home" does not require a preposition).
8. Is there anybody in the dean's office?
9. I must go and see him at three o'clock on Friday.
10. Listen to the new text in the laboratory.
11. Look at the blackboard. Do you see any mistakes on it?
12. Who is on duty today?
13. Will you go to the blackboard?
14. You may go to your place.
15. To the right of the dining-table there is a cupboard.

Grammar Summary Table

Would you like me to create a short practice exercise based on these specific preposition rules for you?