Выберите правильный предлог:
1. I saw Julia in the lecture room a minute ……… (before, back, ago, behind).
2. Don’t put your bicycles ……the shop window (behind, on, before, in front of).
3. Bob will stay with us ……… the end of the month ( to, till, for, from).
4. You mustn’t be late ……… the meeting (on, at, for, to).