I was surprised______.
(2011福建卷,26﹚The lack of eco-friendly habits among the public is thought to be a major of global climate change.
Anyway, I can’t cheat him—it’s against all my ____.
Teachers have to constantly update their knowledge in order to maintain their professional _____.
We’d better discuss everything _______ before we work out the plan.
There’s a _____ in our office that when it’s somebody’s birthday, they bring in a cake for us all to share.