.Having heard the customers’ ________, they decided to improve their products.

Usually a child’s behavior is a(n) ________ of his family environment.

Next week there will be a basketball match between the ________ and the ________of our school. 

 It has always been the _____ of our firm to encourage workers to take part in social activities.

Now that he has missed his ________, he’ll have to wait for the next round.