The humans are destroying nature day by day, ________ of course, will cause severe punishment from it sooner or later.
It's said that a prisoner has escaped __________ the prison.
The bird escaped __________ 、
Human __________ is much more complicated than that of atoms, liquids or planets.
It is the government that __________ the country through the difficulties.
Her shoes __________ her dress;they look very well together.