To keep market prices steady, the government should first keep demand and supply ________ .

A. stocked　　　　　　　　　　　　　　　　　　　　 B. preserved

C. provided　　　　　　　　　　　　　　　　　　　 D. balanced

To keep a trade______, they would have to sell less and buy more in the following months.

1. A.
   pace
2. B.
   distance
3. C.
   balance
4. D.
   increase

To keep a trade______, they would have to sell less and buy more in the following months.

Keeping a balanced diet is one way ______ one can keep healthy.

Keeping a balanced diet is one way ______ one can keep healthy.

1. A.
   how
2. B.
   which
3. C.
   不填
4. D.
   why