A new iPad in the market costs about ______ of a second-hand one.

They worry about the health of the world, and they are strongly ________ to war.[ ]

They were determined to carry out the plan at first, but then we ________ persuade them to change their minds.[ ]

I hesitated for a moment before choosing, otherwise, I the mistake.[ ]

_____ his knowledge of the mountainous country, John Smith was appointed as our guide