N2 — outside your level filter
how very X!; what a lot of X! — a rhetorical exclamation, not a real question
もう、何回注意したことか、いい加減にしてよ。
mou, nankai chuui shita koto ka, ii kagen ni shite yo.
Honestly, how many times have I warned you — quit it already! casual
何度同じことを言ったことか。
nando onaji koto o itta koto ka.
How many times have I said the same thing! neutral
ことか
ことかkoto kaN2neutral