判断下列句子是否正确，不正确的请改正。。。急~！！！

We have their invitation, isn't it?
We have enough time to finish the task.
The price of this book is too expensive.
I want to ask him to come to my birthday party.
The hall resounded with many people.
They won't go there, is it?
He stood at the top of the hill.
Please let him see me.

1,don’t we改为haven't we
2，we have enough time to finish the task
3，expensive改为high
4，……ask him to come to……
5，正确
6，do they改为will they
7，正确
7，……ask him to see me

2不对。enough放在time前
3不对。price应用high形容
4不对。ask sb to do sth
5不对。The hall is full of people
6不对。do they改成will they
8不对。理由同4