---Have you finished your homework _______ ? ------- Not ______.
—How much does it ________ you to buy the bicycle ?—About three yuang.
There are nine______ students at Green High School. Five _____ of them walk to school.
--- Sorry ,I can't sing English songs?--- ___. I'll teach you.
There is _________ swimming pool in front of Jhon's house.
--What can you see on the table?–We can see four ___ and six ______.