It was a totally new experience for us visiting that factory abroad as we were ..... to all sorts of new techniques. (*) involved (*) intended (*) invested (*) introduced
This is a companion discussion topic for the original entry at https://english.best/questions/5171,it-was-a-totally-new-experience-for-us-visiting-that-factory-abroad-as-we-were-___-to-all-sorts-of-new-techniques/