Depression is the leading cause of suicide, __ __ in turn is the third leading cause of death among 15 to 24 year olds in the United States.
When I met him the other day,it was the first time we ______ each other since we graduated from school.
The palace caught fire three times in the last century, and little of the original building now.
It is the ability you have matters, not where you graduate or what you look like.
—Oh dear! How can you________such important information? —Forgive me.
—________busy schoolwork,the children also have to take arts,music and sports classes in their free time. —I wonder what they will bee.