Write affirmative and negative sentences in the present continuous. 1)they/listen/to us(×) 2)laura/do/her homework (+) 3)he/work/on this exercise(×) 4)we/go/to our art class(+)

1) They aren't listening to us.
2) Laura is doing her homework.
3) He isn't working on this exercise.
4) We are going to our Art class.