There is _______ wrong with your watch. Let me check it. 

The population of China is larger than ______ of the United States.

Mum disliked ______ when I behaved badly in front of the guests.

Half of _____surveyed in 16 countries say they go first to their closest friend to share their deepest wishes and darkest fears.

____ is what he did, not what he said, that moved us greatly.