Johnsonwas________unknownbeforerunningforthepresidency.
AftertheAmericanCivilWar,theliteraryinterestintheso-called“reality”oflifestartedanewperiodintheAmericanliterarywritingsknowantheAgeof().
Aliensareborrowedwordswhichhaveretainedtheiroriginalpronunciationandspelling.WhichofthefollowingwordscomesfromChinese?