1.Nick was sick, so she could not go to school.
_because Nick was sick so she could not go to school.
2 The last time I met him was 3 year ago.
-I haven't met him for 3 years.
3.lan went out because she finished her homework.
-Lan went out to finished her homework
4.he is interested in doing morning exercise.
-He
5.this is the first time I've ever painted a mural over graffiti.
-I have never painted a mural over graffiti