She was scared _______ when hearing the sound of explosion.

Most parents are not __________ the danger of their babies’ eating jelly, which causes most unfortunate incidents to happen.

Don’t turn the room __________, as I have just tidied it.

A. inside    B upside down    C. outside       D. inside down

Many people _____ the opening ceremony of 2010 World Expo, which was so amazing.

This is the very book _____ I need now.

Not the way he did it but his words _____ criticized by people present.

With a lot of difficult problems_____， the newly-elected manager is in a dilemma. 

I still remember_____ to visit the Mountain Tai when I was young and I am longing to visit it again.

_____ many times, he finally understood it.

--- Cloud I ask you a rather personal question?

---- Sure, _______.