31.A study shows that students living in non—smoking dorms are less likely to——the habit of smoking.
—Our family will go to Australia for a holiday. —Oh, really? That sounds __________!
There must be a better way to teach our students __________value of __________life than just inviting an old professor to give a boring lecture.
So fast ________ that I could not catch up with them.
She was in a _________ as to whether to stay at school or get a job
Some people go back for their education to ________ another degree or diploma (文凭) to impress the society.