1. 用所给单词的恰当形式填空

old     easy    cook      go       meet

1. （1） He to the No.1 Primary School.
3. （2） I'm going to my grandparents at the airport.
5. （3） It's to use than that one
7. （4） My mother is for me now.
9. （5） I'm ten years than my sister.