1. (2019八上·椒江期末) 用方框中所给单词的适当形式填空，每词仅用一次。

unless   invited   open   able   hundred

1. （1） Helen us to her house yesterday and we had a good time.
3. （2） I'm glad to ask you all to the of our new building.
5. （3） There are of girl students in our school.
7. （4） You'll be late you hurry up.
9. （5） In the future, robots will be to do difficult jobs in different ways.