1. the course begins ........on...........2 January, and ends sometimes ........in.......April

2 the children aren't here at the moment, but they'll be back ....in............... a few minutes

3. we're having a party ....on..........New year's Eve. Can you come ? I'm afraid I can't. I don't like going out .......at........night

4. shall we go now? no, let's wait .......untill.............it stops raining

5. i've got an interview next week. it's ..........at..........9.30......in............tuesday morning

6. bill has worked in this company.....for....five years......since........he graduated from Boston University

7. it rained......in....... the night ......for...... two or three hours