The destruction of the Twin Towers in New York City （）shock and anger not only throughout America but also throughout the whole world.

单项选择题The problem has been（）my mind all day.

A. preying on
B. getting at
C. taking on
D. seeing to

单项选择题I want to（）a slightly different issue which is related to Anna's question earlier about our different meanings of open-ended problems.

A. bring up
B. bring about
C. bring forward
D. bring out