Mom, I am late. I have to run off to the school.—Dear, you needn’t do that. Today is Sunday.

The box is ______heavy______no one inour class can lift it .[ ]

_______ is known to us, the dragon stands for China ______the bear symbolizes Russia.

After eight hours’ hard work, the firemen finally_________the forest fire.

What would you do if you won the lottery? — I would give it_____ medical research.