The manager suggested an earlier date ____________ the meeting.
A great man shows his greatness ________ the way he treats little men.
If you really have to leave during the meeting, you’d better leave ____ the back door.
Fred entered without knocking and, very out of breath, sank _______ a chair.
People try to avoid public transportation delays by using their own cars, and_____ this creates further problems.
Scientists are convinced_____the positive effect of laughter_____physical and mental health.