Radar enables the pilot of an airliner to take off, fly and land in _____.

Health problems are closely connected with bad eating habits and a _______ of exercise.

Language has always been —— as the phrase goes —— the mirror to society. English is no ______

He proved himself a true gentleman and the beauty of his _____ was seen at its best when he worked with others.

The lack of eco-friendly habits among the public is thought to be a major _____of global climate change.