She has gone abroad for three months.(改为同义句)还有：There are five students in the classroom.(改为反意疑问句） The cup is full of green tea.(改为同义句） You'd better eat something before leaving here.(改为否定句） I will ask wang lin to help me tomorrow.(对划线部分提问） wang lin 划线

Three months ago, she went abroad.

Are there five students in the classroom?
The cup is filled with green tea.
You'd better not eat anything before leaving here.
who will I ask to help me tomorrow?

She went abroad since three months ago.
There five students in the classroom,aren't there?
The cup is full with green tea.
You did not have better eat something before leaving here.(存疑)
Who will you ask to help you tomorrow?

She went abroad for three months ago.
There are five students in the classroom,aren't there?
There is full of green tea in the cup.
You won't better eat something before leaving here.