—I don't know ____ or not.—Neither do I.You may ask his teacher.
Mary came ______in the Chinese exam. This is _______time she got the good mark.
Six million, six hundred and sixty-six thousand, six hundred and sixty-six is________.
The room isn’t big enough for us ________.
I hope _________ fun at the birthday party.
There is ______ food in the fridge.