Without facts, we can’t form a correct opinion, for we need to have actual knowledge________ our thinking.
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.
A __________ will be paid to anyone who brings back the suitcase that he lost.