Điền từ thích hợp

1.How excellent girl is!

->What.......
2.We have two-month summer vacation.

->Our summer vacation lasts.....

3.How much is this dictionary?

->How much does.........

4.How high is the Big Ben Clock Tower?

->(height)...............
5.Mr.Lan should wear gloves to protect his hands.

-> Mr.Lan had better...................