We should __________ primary importance to job training.
_______in the wall behind the kitchen, the door was hard to find.
The old professor gave a long _______ lecture,and made us so _______ that we all felt sleepy.
Climbing onto the top of the mountain,_______.
The flowers _______ sweet in the botanic garden attract the visitors to the beauty of nature.
Our class teacher, _______ that he didn't agree with us on the plan for a picnic, left the classroom.