23. (1) ___ is a fact that English is being
accepted as an international language.
(2)___ is no need for us to discuss the
problem again since it has already been settled.
(3) ____ is unnecessary for you to explain
it to us any more.
(4)____ is at least ten years since I left school.
(5) Hurry up! ___ is going to snow.
(6)___ is no doubt that
he'll come.
(7)___ is no use arguing with such a man.
(8) ___ is no knowing what may happen in
one hundred years' time.
(9) ___ is going to be an English
composition contest this afternoon.
A. This B. That C. It D. There