. At the meeting they discussed three different ____to the study of mathematics
The development of industry has been ____gradual process throughout _____ human existence, from stone tools to modern technology.
The police are trying to find out the ____ of the woman killed in the traffic accident.
---I got a rise in salary! ---_____________.
He went home for lunch____ the clock struck twelve.
I would rather ________ to work after my graduation, but my father would rather I ________ abroad for further education.