The _______of our life has been improved greatly since the Party’s policy was carried out.

That little boy can pick up a tune immediately on the violin, he really has a _____for music.   

 I caught a _____ of the car before it disappeared around the bend.

The _____ of electricity added to our difficulty repairing the bridge.          

I must have been a great _____ to my parents in those hard days, for I never failed to live up to their expectations.