The book is not _____ what we paid.
Nowadays, ______ number of people doing fitness training is on _______ increase.
I think full advantage is _______ of this technology to improve the quality of our products.
------ It seems that you have worked here for a long time.------ No. It was just a year ago ______ I started working here.
------ She might complain about you to your manager.------ _______? I know I am in the right.
Clean water and fresh air are essential for our daily life, _______ we can’t live.