He _________ the boy's ignorance and sold him a worthless learning machine.
The young dancers looked so charming in their beautiful clothes that we took ____pictures of them.
Playing on a frozen sports field sounds like a lot of fun. Isn’t it risky, ______?
Some don’t agree to the plan, while I’m out of ____ opposed to it.
You may depend on ____ that they are of much value.
Sam has been appointed ____ manager of engineering department to take ____place of Tim.