英语,按要求改写下列各句.

题目

英语,按要求改写下列各句.
1.Her grandfather died seven months ago.(改为同义句)
Her grandfather _ _ _ for seven months.
2.The boy has to stay at home and help his fa-ther work on the farm.(改为反意疑问句)
The boy has to stay at home and help his fa-ther work on the farm,_
3.His sister is very young.Shecan do nothing.(改为同义句)
His sister is _ young to do
4.I did some reading yesterday.(改为一般疑问句)
_ you _ and reading yester-day?

答案

has been dead
doesn't he
too anything
Did do