Let’s make contributions to_________world of the 21st century, _________world of success and understanding each other.
As a student, you should try to ______ being late for your class.
This is ______ difficult problem that few students can work it out.
A notice was ________ in order to remind the students of the changed lecture time.
This is not a match. We’re playing chess just for ______.
They made the longest sofa in the world. It is ten times ______ the ordinary ones.