—Oh,you sounded just like a native.—________Why didn't you call us earlier?
_____ you keep on trying, I really don’t mind whether you can come up top in your class.
The medical reform in that country proved to be _____ failure, but as we know, success often comes after _____ failure.
After working for two years, Tim Martin was ___ as the top manager in charge of the company.
I’m sorry to tell you that we decided __________ your plan.
They are going to find a new approach ______these complex problems.