It is generally believed that teaching is _____ it is a science.
. The house is nice, but ______ too small for a family of five.
______ from what he said, he must be the thief who has stolen the car.
. They were surprised that a child could work out the problem ______ they themselves couldn’t.
. --- I hear Jane has gone to the Holy Island for her holiday. --- Oh, how nice! Do you know when she ______ ?
. The factory was built in a secret place, around _____ were high mountains.