文档介绍：,直接加-s,如:book-books, bag-bags, cat-cats, bed-beds . x. sh. ch结尾,加-es,如:bus-buses, box-boxes, brush-brushes, watch-watches “辅音字母+y”结尾,变y为i, 再加-es,如:family-families, strawberry-strawberries “f或fe”结尾,变f或fe为v, 再加-es,如:knife-knives : man-men, woman-women, policeman-policemen, policewoman-policewomen, mouse-mice child-children foot-feet,.tooth-teeth fish-fish, people-people, Chinese-Chinese, Japanese-Japanese 练****写出下列各词的复数  I _________him _________this ___________her ______ watch _______child _______photo ________diary______