Mrs.Wilsonwasthefirstwoman____tosuchapost.A.tohavebeenelectedB.tobeelected.参考选A.这里却有另外的例句：HewasthefirstmantoflyacrosstheAtlantic.Theywerethelastgueststoarrive.Iwasthefirstinmyfamilyto

　　Mrs.Wilsonwasthefirstwoman____tosuchapost.A.tohavebeenelectedB.tobeelected.

　　参考选A.这里却有另外的例句：

　　HewasthefirstmantoflyacrosstheAtlantic.

　　Theywerethelastgueststoarrive.

　　Iwasthefirstinmyfamilytogotocollege.（选自牛津第七版）

　　SheliaandJimwerethefirsttoarrive.（选自牛津第七版）

　　Hewasthefistmantolandonthemooninjuly1969.(选自人教版必修一教材).