It is well-known to us all that knowledge is ____ treasure, but practice is ____ key to it. A a, ∕ B a, the C the, the D∕ , the
Lucy likes____ TV.
——______is your Chinese teacher? ——Mr. Zhang is.
He _____go to play basketball because he is busy.
I_____two baseballs and my friend ______five baseballs.
—____ are the pants? —They are 180 yuan.