问题 填空题 写出下列单词的复数形式。1. tooth ______________4. foot ______________7. fish ______________2. man ______________5. child ______________8. box ______________3. woman ______________6. leaf ______________9. bus ______________ 答案 1. teeth 2. men 3. women 4. feet 5. children 6. leaves 7. fish或fishes 8. boxes 9. buses