一．
1．昂贵，用exoensive,选A
2．太贵了，用too expensive,选C
3．他太笨，一至于无法回答,选C
4.has never是否定，前面否定，后面用肯定，he用has，选D
5．前面肯定，后面用否定，you的助动词为do，选A
二．
1.My father has just arrived in Shanghai.
2.We have got their invitation,have we?
3.You can take me home,can't you?
4.We have enough time to finish the task.
5.The price of the book is too expensive to buy.
6.I would like to ask him to come to my birthday party.
7.The hall are full of people.
8.They won't go there,will they?
9.He is standing on hilltop.
10.Please ask him to see me.
三.
1.这个孩子高得足以抓到灯．
2．我将要准备晚餐．
3．他没有通过考试，是吗？
4．振作起来，这并不是件极其困难的事．
5．他说他刚到伦敦．