--- _____ the change of the schedule ______?--- Oh, God! I forgot all about it. I’ll do it right now.
--- Don’t forget to take the message to my teacher. --- .
After a knock at the door, the children heard his mother’s voice him.
Not until the train pulled into the next station ______ that his briefcase had gone.
John lost his job last year, but it wasn't long ______ he found a new position in another company.
In most cases, customers can't help ______ to buy things they actually do not need.