He had a wonderful childhood, _____with his mother to all corners of the world.[ ]

As we know, success often comes after ______ failure; so don’t be so upset about _______ failure of this matter.

The conclusion _____ the police came to _____ the boss was as much to blame as anyone else for the great fire didn’t satisfy everyone

ou call me to say you are not coming, I will seeyou at the theatre at five this afternoon．

People are concerned about the quality of the air they ______.