If you don’t know what this means, ________ the dictionary.

We live in a society_____ there is a great deal of debate about competition.

I’d rather_______ your telephone number in mynotebook, _______ I will forget it.

Will there be more trees in our hometown in ten years—- _________. Because people think trees are very important for us.

Several hours later, with the help of the police, the students managed to escape from the dangerous situation, ______.