I don't know what to wear tonight

宾语从句,主语I,谓语don't know 宾语是what to wear,时间状语是tonight
英语和汉语不同,英语的每一个句子都必须有完整的主谓宾,自然主语是不可省略的.
再问： �Ӿ䲿��ҲӦ������ν���ɣ��Ҿ�������know����ĴӾ���ôû��
再答： �Ҳ�֪�����ʵ����Dz��֣��� �Ӿ��ν����to wear,������what
再问： ����Ӿ�ĴӾ����ʡ�������� I don't know what to wear tonight �Dz��������Ϊ I don't know what I am to wear tonight
再答： ����ľ����������,����һ�㲻������д��what��where,how ,when,who������ֱ�ӽӶ��ʲ���ʽ�� �ɲ�����ʡ������ȡ���ڴӾ�����������������Ƿ�һ�£�һ�µĻ����Ϳ���ʡ�ԣ���һ�¾�Ҫ�����Ӿ������磺I found that she was watching TV.