The window of the classroom _________for about three hours .Please go and close it.

Have you finished the book？—No. I’ve read up to _____ the children discover the secret cave.

Heroes ______ their life ______ becoming the best they can be, whether it is President of the United States, a mother, or a firefighter.

How about raising money for the poor children in our school— .

________ around the fire, the tourists danced with the local people.[ ]