Question

...she ever...St.Paul's Cathedral?

Answer 1

Has she ever visited st. Paul's cathedral.

Либо

Has she ever been to st. Paul's cathedral.

Оба варианты верны, зависит от того какой вам по заданию нужен глагол: посещала или бывала. Если клагол не важен, то берите любой вариант

Answer 2

It seems like your sentence is incomplete, and I'm not sure what you're asking. Could you please provide more context or complete your sentence so that I can assist you better? Are you asking if someone has ever been to St. Paul's Cathedral or if there's some information related to it? Please clarify, and I'll be happy to help!