If you want to change the world, you have to ______yourself first.

The 18th Jiangsu Provincial Games will ______ in September. Many students want to be volunteers.

Having fish at meals regularly can be ofgreat _________ to your heart.

“That VCD you bought ____ very expensive” . “Do you know ____ ? ”

People send out sky lanterns to ask for help when in trouble, but now sky lanterns celebrating the festivals.