Помогите решит пожалуйста задания 19

1. He works on Mondays.(Present Simple)
2. Do not distract him! He is working. (Present C.)
3.He worked there in 2010. (Past Simple)
4.He worked there yesterday.(Past Simple)
5.Yesterday in 5 o'clock he was woking. (Past Countinious)
6.When she is came(Past S.) in the room, he was working.( Past Countinious)
7.He worked, after universary (Past Simple)
8. When the bell rang(Past S.), he was working(Past C.)
9.When we came(Past S.) , he was working.(past c.)
10. Now he works.(Present S.)