There are about _____ students in the school, and ____ of them are boys.A. two thousand, three fifthB. two thousand, three fifths C. two thousands, three fifths
Knowing how to _______ a map can help you when you are travelling in a strange place.
Now the air in our city is _______ than it used to be. Something must be done to stop it.
—The books are so nice, which one can I take? —Oh, you can take _______ of them. I’ll keep none.
I wanted to explain, but he didn’t give me any _______.
—Who is playing the piano in the classroom? —_______ must be Susan. She plays the piano after school every day.