I have been told that the new law will come into ______ on January 1st next year.

His letter was so confusing that I could hardly make any ______ of it.

The government is aiming to reduce the unemployment, but it’s quite _______ to have a job at all these days. 

 It’s a great _______ for a person to be able to speak fluent English when he is seeking a job.

This chemical works _____.