Don’t make the old people live_______ if possible. They will feel_______.

The problem is __________ for Tom to work out.

— _________ has Liu Xiang taken part in world’s competitions of 110-metre hurdles?— I’ve no idea. Let’s find it out on the Internet.

Be careful!. We must _____ play on the street. 

The article is ________ more difficult than that one, so I think I can understand it with the help of a dictionary.