“Sorry” is the hardest word to say sometimes_______ you know you’ve done something wrong, or something inappropriate, it takes courage to say sorry

e opening________of the school, our headmaster gave a short speech.

I have a lot of rules at home, _________

The first decade in the 21stcentury _______ the rapid rise of China as a world economic power

hing the zoo, the excited children can’t wait to see the elephants.