There is no denying - definition

[Veki]

Test No. incompl/elem-30 "Responses (3)", question 10

Mike: 'I just think they've wasted their time, don't you?'
Jane: '.........'

(a) There's no admitting it.
(b) There's no assigning it.
(c) There's no decrying it.
(d) There's no denying it.

Test No. incompl/elem-30 "Responses (3)", answer 10

Mike: 'I just think they've wasted their time, don't you?'
Jane: 'There's no denying it.'

Correct answer: (d) There's no denying it.

Your answer was: n/a
_________________________

PLease, answer me.
I don't understnad why I have to put "denying it"
Thank you

[Torsten]

Veki,

Thanks for your question. There is no denying is a set phrase that means that something is true because it's a (proven) fact.

TOEFL listening discussions: A conversation between a professor and a university student in the professor's office

[Ttg]

Can I just say "There is no denying", with out "it"?
Many thanks in advance.