一道英语题 急用

Most I come here before 7o’clock?(否定回答)
No,you needn't.
She need to buy some food for super.(改为一般疑问句)
(这句对吗，不是应该是needs?)
Tom is doing the housework with his mother.(对doing the housework提问)
What is Tom doing with his mother?
We are going to do some shopping this weekend.(改为否定句)
We are not going to do any shopping this weekend.
Jerry handed in his homework on time.(改为反意疑问句)
Jerry handed in his homework on time,didn't he?
They danced happily in the park yesterday.(改为一般疑问句)
Did they dance happily in the park yesterday?

no ,you needn't
Does she need to buy some food for super
What is Tom doing with his mother
We aren't going to do some shopping this weekend.
Jerry handed in his homework on time,didn't he
Did they dance happily in the park yesterday

No,you need't
Dose she need buy some food for 。。
Who dose Tom doing with his mother
We will not go to do some shopping this ...
Didn't jerry hand in his homework on time
did they dance happily in the park yesterday