elaborate on tenses(present or past)

[jordon11]

I am appreciated to your help first. Which one (was/is) best fit the blank in the sentence below?

For her to have gone through such an ordeal _______ remarkable.

To me, "is" is better in this context, because of the present perfect "have gone" in the subject.(in this case, it is to-infinitive)

However, the grammar book uses "was" to fill in the blank, I wonder why. Could you tell me the reason why "was" is used? I know it means differently with "was", but I do not know the difference. Thanks

 

[Tdol]

I don't think it depends on 'to have gone'. What matters is whether it is still remarkable now or whether it was remarkable at some point in the past. Without more context, I think both are correct.