Is _______ necessary_______ the workers wear uniforms at work?A. it, for B. this, to C. it, that
--- Why didn’t you go to Tom’s birthday party? --- Sorry, _________.
We found _________ necessary _________ our pocket money to support Project Hope.
Will her new album(专辑) _________in June this year?
_________they had _________with each other over a cup of coffee!
_________ a sports meeting in our school this Friday afternoon.