Many patients insist on having watches with them in hospital, ______ they have no schedules to keep.
Robots differ from automatic machines ________ after completion of one specific task，they can be reprogrammed by a computer to do another one.
It seems as if the sun_____round the earth since it rises in the east and sets in the west.
Jeans are so hot these days that big name stars appear on TV advertising for their ______ brands.
He drove fast and arrived an hour_____of schedule.
