. It used to be thought _____ the Earth was flat.
On Mar.11,2011, an earthquake hit Japan , _____12554 deaths and 15077 missing.
“Something in __ nature” is quite different from “Something in__ universe” or “something in____ space”.
The number of people invited _____ fifty, but a number of them _____ absent for different reasons.
_________ that he learned some Chinese as a child.
She was so angry at all _____ he was doing _____ she walked out, and closed the door behind her.