I haven't seen___before.A so an interesting film B such interesting a film C so interesting film

I haven't seen___before.A so an interesting film B such interesting a film C so interesting film
I haven't seen___before.A so an interesting film B such interesting a film C so interesting film

I haven't seen___before.A so an interesting film B such interesting a film C so interesting film
such+（如,an interesting book..）+that
so+(记得不是很清楚了,比如,big small一类的)
然后这题就选c吧

such an interesting film
so interesting a film