Having arrived at the station, _____.
Determination is a kind of basic quality and this is _____ it takes to do jobs well.
George Washington was born in 1732 in a rich family in _______ is now the state of Virginia.
_________anyone should want to kill her was unbelievable.
-----Alice looks blue today.-----Yes, I asked her, but she wouldn’t say _____ troubled her.
_____ makes his parents proud is _____ his son has been admitted by Beijing University.