The stronger the _____is, the more quickly a man will learn a new skill. In other words, it is up to whether he has an interest in it.

 Those in the living room, which are the most ______ to hurt us, are computers, televisions and lamps. 

Now that he ________ that he had made some mistakes，you should have forgiven him.

It is necessary for children to exchange ideas with parents from time to time so that the generation gap between parents and children can be _________.

After a long discussion about the advantages and disadvantages of the plan, they finally came to a(n) ________that it was practical.