The president spoke at the business meeting for nearly an hour without ______ his notes.

How much do you ________ for repairing my CD player?

The doctor, ________ by several nurses, successfully performed the difficult operation on the patient. 

--Which color do you prefer, red or black? ---Red. For red_____a sense of energy and strength.

The old couple decided to　　 a boy and a girl though they had three of their own.