تعلم اللغة الإنجليزية المضارع التام المستمر

إختر التصريف الصحيح للفعل.

1. I --- have been learning --- have been learned --- has been learning Ducth for 10 years.
2. How long --- has you been waiting --- have you been waited --- have you been waiting here?
3. My grandmother --- have been baking --- has been baking --- have been baked a cake.
4. Sarah --- have been solved --- has been solved --- has been solving the quiz.
5. I --- have been working --- has been working --- has been worked here since 1999.
6. Ali --- have been living --- has been living --- has been lived in London since 2000.