25 -ill Bill / hill / mill / pill / fill / till / bill / will / kill030 26 -ilk silkworm / silk / milk032 27 -ift thrift / drift / lift / swiftly / shift / gift033 28 -im him / swim / slim034 29 -in twin / grin / pin / chin / skin / sin035 O的短元音 30 -ox ...