1. Accusative and vocative singular, nominative/accusative/vocative dual, nominative plural of nouns. ���ʵı���ͺ�����������/����/����˫������������
2. professional aluminum case manufacturer:cosmetic case, poker chip case, tool case, jewelry case, CD case, laptop case, and etc. רҵ�����������Ͻ��������ױ�䣬�����䣬�����䣬�����䣬CD��ȵȣ���ɸ����û����ƣ�
3. After a preposition the objective case of pronouns should be used, but he used the nominative case. �ڽ�ʺ��棬�˳ƴ���Ӧ���ñ���������������
4. Put this noun in to the nominative . �����������������
5. Ali prepositions require the nominative. ��ʺ�������ʡ�������������
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nominative case ����;
pencil case stationery box stationery case writing case �ľߺ�;
pencil case stationery box stationery case writing case �ľߺ�;
pencil case stationery box stationery case writing case �ľߺ�;