按要求完成下列各词。(24分)
(1)teach (过去式) ________ (2)study (第三人称单数) ________
(3)teach (名词) ________ (4)potato (复数) ________
(5)sheep (复数) ________ (6)run (过去式) ________
(7)real (副词) ________ (8)here (同音异义词) ________