(2012浙江卷) The development of industry has been_______ gradual process throughout _______ human existence, from stone tools to modern technology.
The newspaper's owner and editor ___ away on holiday.
____ the expense, I ____ a round-the-world tour.
____ you dislike ancient buildings, Warrick Castle is worth a visit.
It was dark and cold. They had to find a house ____ and some wood ____.
The house built of stone lasts longer than ____ built of wood.