The number of the students ______ this year’s entrance exam is 650,000 less than last year.
Scientists are convinced the positive effect of laughter physical and mental health.
If you really have to leave during the meeting, you’d better leave ____ the back door.
Let’s learn to use the problem we are facing ________ a stepping-stone to future success.
The house still needed a lot of work, but _______the kitchen was finished.
Modern equipment and no smoking are two of the things I like ____ working here.