Поставьте пожалуйста правильно времена
1.when she (leave) the school, she (cut) her hair and (wear) it short since then.
2. Mark, why you (make) such a horrible noise? -I (lose) my key and I (try) to wake my mother, but she (not to hear) anything.
3. i never (meet) him before but (hear) that he (work) as a programmer

1.when she left the school, she  cut her hair and has worn  it short since then.2. Mark, whyare  you making such a horrible noise? -I lost my key and I am trying to wake my mother, but she does not  hear anything.3. I've never met him before but I've heard that he works as a programmer