What must she do 有没有语法错误

What must she do 有没有语法错误 英语翻译英文是：1.how must she do?2.how must her do?3.what must she do?4.what must her do?应该是哪个? What must I do 与What must do 有什么不同? what musti/we/you/he/she/they do and what must not'' i/we/you/he/she/they do 是甚麽意思 how must i do和what must i do有什么区别 What do she _______?她有什么?英：What do she _______?中：她有什么? should she do和what to do,有什么区别? What must Nina not do what must i do和what should i do 有什么区别 what does she do? What does she do? what did she do? what did she do what can she do do what she what can she do What can she do? What will she do?