用所给词的适当形式填空。
—Do you brush your ______ (tooth) every morning?—Yes, I do. Look, how white they are!
Liu Xiang is a good ______________ (run).
Fruits and vegetables are ______________ (health) food. You can have more of them.
December is the _______________ (twelve) month of the year.
We have many new clothes at a good price. Come and see for _____________ (you).
I can play the guitar but I can’t play it very _______________ (good).
Listen to ____________ (I)! I’ll tell you all about it.
My little brother ____________ (not do) his homework carefully. He isn’t good at his lessons.
Lisa ____________ (have) a great sports collection. She likes sports.
Can you help me with _____________ (swim)?