彼(かの)女(じょ) kanojoは waとても totemo勤(きん)勉(べん)な() kinbenna少(しょう)女(じょ) shoujoだった dattaので nodeフ()ラ()ン()ス()語(ご) furansugoが ga大(おお)い()に() ooini進(しん)歩(ぽ) shinpoした shita。 She was such a diligent girl that her French improved greatly. studyingdiligenceeducationFrench languagelanguage learning~ので (because)大いに (greatly, immensely)attributive な (na-adjective)Sino-Japanese compounds