Teachers are not happy when they find in class their students sending       to their friends.

 His letter was so confusing that I could hardly make any        of it.

Many football fans attached great importance to the two matches, because China needed to beat Iran to ensure ________ for the Asian Cup semi-finals.

Brian is so kind that he often gives me a ________ when I'm in trouble. 

Seeing the happy _____ of children playing in the park, I’m full of joy and confidence in the future of our country.