Wireless waste from cell phones, pocket PCs, and music players（）special problems because they have toxic chemicals in batteries and other components.

单项选择题What is it that the author wants to （）to his readers through the story

A. convey
B. convince
C. convert
D. conform

单项选择题I was（）to learn that you are going to spend the summer with your parents in Hong Kong

A. disgraced
B. distracted
C. thrilled
D. bleached