1.把下列名词单数变成复数
问题描述：
1.把下列名词单数变成复数
him?this?her?watch?child?photo?diary?day?foot?book?dress?tooth?sheep?box?bike?thief?yo-yo?peach?sandwich?man?woman?paper?juice?water?milk?rice?tea?bus?wife?story?foot?potato?boy?policewoman?sheep?class?knife?leaf?tomato?tooth?strawberry?zoo?piano?car?cat?match?city?mango?brush?map?apple?
答
按顺序是：we they these they watches children potos diaries days feet books dresses teeth sheep boxes bikes thieves yo-yos peaches sandwiches men women paper 不可数 不可数 不可数 不可数 不可数 buses wives stories feet potatoes boys policewomen sheep classes knives leaves tomatoes teeth strawberries zoos pianos cars cats matches cities mangoes brushes maps apples