Care of the soul is a gradual process ________ even the small details of life should be considered.(2012·湖南)

May I go now—_______ you’ve finished your work，you may go.

Children’s brains cannot develop properly _________ they lack protein.

If the price of oil remains ________ for the rest of 2013, I will consider buying a new car.

To make sure the relics in the museum are well-preserved Tibet’s cultural preservation institutions have _____ modern technologies to monitor the conditions of the relics. [ ]