Present Perfect or Present Rerfect Continuous. 1) I can"t open the door. I ....................... (leave) my keys inside. 2) I ................... (learn) English for six years. 3) How long .................... you .............. (make) the soup. 4)The bus ................ just .............. (arrive). 5) He ................. (work) in the garden for an hour. Помогите, прошу!

1. Have left
2.have learned
3.---
4.has arrived
5.is working