Tony is not as clever as Lucy, but he works ______ than her.

Nothing is _____ to defeat you when you often assess yourself negatively. 

If he is only interested in your look, that just shows how _________ he is.

 --What do you think of the Prime Minister’s address to the nation? --I like________of what he said.

 We do hope that one day the Chinese language will become a __________ language, that is, everyone in the world will communicate in it.