几个词形变化帮我哪.

题目

几个词形变化帮我哪.
1、When you write to your friends ,you can use （）（formal）language.
2、We all think Jim is a （）（suit）person to be monitor in our class.
3、We are （）in that （）activity .（interest）
4、Miss Wang can make her lessons （）（live）and interesting .We all like her .
5、It was （）（think）of you to send me the flowers.
6、The boy didn’t pay much （）（注意力）to the exercises.As a result ,he failed.

答案

1 informal
2 suitable
3 interested ,interesting
4 lively
5 thought
6 attention