Thanks to the vivid ______, the speaker made the abstract concept accessible to all the audience.

While visiting the robot exhibition, the professor kept nodding his head to express his _______ with his students’ work.

The man was determined to deal with the problem on his own and turned down ______ of help.   

Contrary to our ______, the Chinese Men’s Football Team lost to Iraq.

I’m told that you are going to Canada to have a three month further study. Don’t let such a good chance to improve your English _____ through your fingers.